Dual electrode system for a continuous analyte sensor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7761130
APP PUB NO 20070213611A1
SERIAL NO

11692154

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Disclosed herein are systems and methods for a continuous analyte sensor, such as a continuous glucose sensor. One such system utilizes first and second working electrodes to measure analyte or non-analyte related signal, both of which electrode include an interference domain.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
DEXCOM, INC.SAN DIEGO, CA359

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boock, Robert J San Diego, US 43 1685
Brauker, James H San Diego, US 270 65801
Burd, John San Diego, US 7 1676
Goode, Paul V Cherry Hill, US 89 15121
Kamath, Apurv U San Diego, US 110 36085
Nicholas, Melissa A San Diego, US 10 1675
Petisce, James R San Diego, US 131 17621
Rhodes, Rathbun K Madison, US 42 10603
Rixman, Monica A San Diego, US 20 2616
Simpson, Peter C Encinitas, US 204 26067
Tapsak, Mark A Orangeville, US 74 18439
Woo, Kum Ming San Diego, US 34 7633

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (25)
4431004 Implantable glucose sensor 734 1981
4685463 Device for continuous in vivo measurement of blood glucose concentrations 428 1986
4776944 Chemical selective sensors utilizing admittance modulated membranes 346 1987
4852573 Implantable neural electrode 464 1987
4822336 Blood glucose level sensing 100 1988
4909908 Electrochemical cncentration detector method 311 1988
4953552 Blood glucose monitoring system 1041 1989
5050612 Device for computer-assisted monitoring of the body 1010 1989
5140985 Noninvasive blood glucose measuring device 383 1991
5312361 Automatic cannulation device 290 1992
5337747 Implantable device for estimating glucose levels 555 1993
5540828 Method for making electrochemical sensors and biosensors having a polymer modified surface 325 1994
5795453 Electrodes and metallo isoindole ringed compounds 86 1996
6442413 Implantable sensor 467 2000
6459917 Apparatus for access to interstitial fluid, blood, or blood plasma components 247 2000
6579498 Implantable blood glucose sensor system 363 2000
6612984 System and method for collecting and transmitting medical data 363 2000
7033322 Implantable sensor 259 2001
2002/0042,561 Implantable sensor and integrity tests therefor 364 2001
6895265 Implantable sensor 522 2002
2003/0138,674 Electrochemical methods for generation of a biological proton motive force and pyridine nucleotide cofactor regeneration 150 2002
2005/0258,037 Electrochemical sensor 81 2003
2005/0197,554 Composite thin-film glucose sensor 86 2005
2006/0079,740 Sensors for detecting substances indicative of stroke, ischemia, or myocardial infarction 171 2005
2007/0038,044 Analyte sensor 283 2006
 
MINNESOTA MINING AND MANUFACTURING COMPANY (1)
4786657 Polyurethanes and polyurethane/polyureas crosslinked using 2-glyceryl acrylate or 2-glyceryl methacrylate 87 1987
 
MINIMED INC. (5)
5882494 Polyurethane/polyurea compositions containing silicone for biosensor membranes 561 1995
5777060 Silicon-containing biocompatible membranes 304 1996
6642015 Hydrophilic polymeric material for coating biosensors 324 2000
2002/0119,711 Insertion set for a transcutaneous sensor 409 2002
6784274 Hydrophilic, swellable coatings for biosensors 322 2002
 
ELAN CORPORATION, PLC (2)
5807375 Analyte-controlled liquid delivery device and analyte monitor 861 1995
5800420 Analyte-controlled liquid delivery device and analyte monitor 833 1996
 
TENAX THERAPEUTICS, INC (2)
5964993 Glucose sensor 615 1996
5914026 Implantable sensor employing an auxiliary electrode 374 1997
 
VICTORIA UNIVERSITY OF MANCHESTER, THE (2)
4886740 Enzyme-electrode sensor with organosilane treated membrane 122 1986
5531878 Sensor devices 694 1995
 
EXOSTAT MEDICAL, INC. (1)
2004/0006,263 Noninvasive detection of a physiologic parameter within a body tissue of a patient 56 2003
 
PIONEER SURGICAL TECHNOLOGY, INC. (1)
5776324 Electrochemical biosensors 193 1996
 
N.V. NEDERLANDSCHE APPARATENFABRIEK NEDAP (1)
5372133 Implantable biomedical sensor device, suitable in particular for measuring the concentration of glucose 607 1993
 
MARINE BIOLOGICAL LABORATORY (1)
6802957 Self-referencing enzyme-based microsensor and method of use 376 2001
 
DUQUESNE UNIVERSITY OF THE HOLY GHOST (2)
5387327 Implantable non-enzymatic electrochemical glucose sensor 343 1992
5469846 Implantable non-enzymatic electrochemical glucose sensor 478 1994
 
XILINX, INC. (1)
5486776 Antifuse-based programmable logic circuit 65 1994
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (7)
5264104 Enzyme electrodes 909 1992
5593852 Subcutaneous glucose electrode 1030 1994
6284478 Subcutaneous glucose electrode 797 1996
5965380 Subcutaneous glucose electrode 923 1999
6083710 Electrochemical analyte measurement system 845 1999
6121009 Electrochemical analyte measurement system 898 1999
2004/0023,317 Implantable biosensor from stratified nanostructured membranes 104 2003
 
MITSUBISHI PENCIL KABUSHIKI KAISHA (1)
5281319 Carbon micro-sensor electrode and method for preparing it 191 1992
 
ELI LILLY AND COMPANY (1)
4340457 Ion selective electrodes 45 1980
 
GREATBATCH LTD. (1)
6013113 Slotted insulator for unsealed electrode edges in electrochemical cells 233 1998
 
AVL MEDICAL INSTRUMENTS AG (1)
5683562 Planar sensor for determining a chemical parameter of a sample 348 1995
 
POWERZYME, INC. (1)
2003/0228,681 Analyte sensor 99 2003
 
ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH (10)
5497772 Glucose monitoring system 1051 1993
5660163 Glucose sensor assembly 878 1995
5791344 Patient monitoring system 987 1996
5999848 Daisy chainable sensors and stimulators for implantation in living tissue 558 1997
6081736 Implantable enzyme-based monitoring systems adapted for long term use 622 1997
6088608 Electrochemical sensor and integrity tests therefor 799 1997
6119028 Implantable enzyme-based monitoring systems having improved longevity due to improved exterior surfaces 679 1997
6259937 Implantable substrate sensor 655 1998
6498043 Substrate sensor 369 2000
2003/0065,254 Implantable enzyme-based monitoring system having improved longevity due to improved exterior surfaces 239 2002
 
MITSUBISHI RAYON CO., LTD. (2)
4442841 Electrode for living bodies 264 1981
4672970 Electrode for living body 221 1985
 
ANIMAS TECHNOLOGIES LLC (15)
5735273 Chemical signal-impermeable mask 334 1995
6180416 Method and device for predicting physiological values 430 1998
6587705 Biosensor, iontophoretic sampling system, and methods of use thereof 346 1999
6144869 Monitoring of physiological analytes 535 1999
6233471 Signal processing for measurement of physiological analysis 837 1999
6326160 Microprocessors for use in a device for predicting physiological values 489 1999
6561978 Devices and methods for frequent measurement of an analyte present in a biological system 690 2000
6615078 Methods and devices for removing interfering species 184 2000
6356776 Device for monitoring of physiological analytes 368 2000
6595919 Device for signal processing for measurement of physiological analytes 646 2001
2002/0019,022 Method and device for predicting physiological values 499 2001
6553244 Analyte monitoring device alarm augmentation system 427 2001
6633772 Formulation and manipulation of databases of analyte and associated values 614 2001
6594514 Device for monitoring of physiological analytes 264 2001
2003/0235,817 Microprocessors, devices, and methods for use in analyte monitoring systems 455 2003
 
YSI INCORPORATED (2)
5298144 Chemically wired fructose dehydrogenase electrodes 221 1992
6551496 Microstructured bilateral sensor 295 2001
 
E. HELLER & COMPANY (5)
6134461 Electrochemical analyte 1089 1998
* 6175752 Analyte monitoring device and methods of use 1410 1998
6484046 Electrochemical analyte sensor 900 2000
6565509 Analyte monitoring device and methods of use 998 2000
2003/0187,338 Analyte monitoring device and methods of use 680 2003
 
Firma Carl Freudenberg (1)
4973320 Tissue-compatible medical device and method for manufacturing the same 88 1988
 
TC1 LLC (1)
4861830 Polymer systems suitable for blood-contacting surfaces of a biomedical device, and methods for forming 159 1987
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (10)
4484987 Method and membrane applicable to implantable sensor 404 1983
4671288 Electrochemical cell sensor for continuous short-term use in tissues and blood 882 1985
4650547 Method and membrane applicable to implantable sensor 443 1985
4703756 Complete glucose monitoring system with an implantable, telemetered sensor module 964 1986
4890620 Two-dimensional diffusion glucose substrate sensing electrode 679 1988
5985129 Method for increasing the service life of an implantable sensor 279 1992
6542765 Method for the iontophoretic non-invasive determination of the in vivo concentration level of an inorganic or organic substance 49 1998
6721587 Membrane and electrode structure for implantable sensor 345 2002
7336984 Membrane and electrode structure for implantable sensor 42 2003
2008/0034,972 Membranes with controlled permeability to polar and apolar molecules in solution and methods of making same 46 2006
 
HEALTH HERO NETWORK, INC. (1)
5307263 Modular microprocessor-based health monitoring system 1009 1992
 
E. I. DU PONT DE NEMOURS AND COMPANY (1)
2007/0129,524 Thermoplastic polyurethanes comprising polytrimethylene ether soft segments 55 2005
 
Wing Labo Co., Ltd. (1)
5582497 Automatic warehouse system 53 1994
 
THE UNIVERSITY OF BRITISH COLUMBIA (1)
5624537 Biosensor and interface membrane 491 1994
 
THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS (1)
6074775 Battery having a built-in controller 127 1998
 
Solutech, Inc. (2)
4726381 Dialysis system and method 70 1986
4763658 Dialysis system 2nd method 62 1987
 
CARDIOX CORPORATION (1)
6299583 Monitoring total circulating blood volume and cardiac output 170 1999
 
GENORX, INC. (1)
2004/0023,253 Device structure for closely spaced electrodes 249 2002
 
UNIVERSITY OF KANSAS (1)
5165407 Implantable glucose sensor 941 1991
 
UT-BATTELLE, LLC (1)
6673596 In vivo biosensor apparatus and method of use 334 1999
 
MAXIM INTEGRATED PRODUCTS, INC. (1)
2002/0177,763 Integrated lancets and methods 242 2001
 
EDWARDS LIFESCIENCES CORPORATION (2)
2007/0200,254 Method and apparatus for using flex circuit technology to create an electrode 132 2007
2007/0202,672 Method and apparatus for using flex circuit technology to create a reference electrode channel 130 2007
 
SANKYO COMPANY, LIMITED (1)
4871440 Biosensor 495 1988
 
A&D COMPANY, LIMITED (1)
5741634 Throwaway type chemical sensor 323 1995
 
DANFOSS A/S (1)
2005/0154,272 Method and device for monitoring analyte concentration by use of differential osmotic pressure measurement 51 2005
 
ABBOTT POINT OF CARE INC. (1)
6030827 Microfabricated aperture-based sensor 276 1998
 
METROHM AG (1)
5686829 Voltammetric method and apparatus 328 1995
 
COMMTECH INTERNATIONAL MANAGEMENT CORPORATION (1)
5183549 Multi-analyte sensing electrolytic cell 76 1990
 
ARROWHEAD CENTER, INC. (1)
6893552 Microsensors for glucose and insulin monitoring 335 2001
 
ABBOTT DIABETES CARE INC. (21)
5972199 Electrochemical analyte sensors using thermostable peroxidase 663 1997
6294281 Biological fuel cell and method 302 1998
6461496 Small volume in vitro analyte sensor with diffusible or non-leachable redox mediator 814 1999
6618934 Method of manufacturing small volume in vitro analyte sensor 813 2000
6654625 Mass transport limited in vivo analyte sensor 764 2000
6579690 Blood analyte monitoring through subcutaneous measurement 915 2000
6329161 Subcutaneous glucose electrode 965 2000
6607658 Integrated lancing and measurement device and analyte measuring methods 539 2000
6560471 Analyte monitoring device and methods of use 938 2001
6689265 Electrochemical analyte sensors using thermostable soybean peroxidase 370 2001
6932894 Biosensor membranes composed of polymers containing heterocyclic nitrogens 511 2002
2003/0088,166 Electrochemical analyte sensor 240 2002
2003/0199,744 Small volume in vitro analyte sensor with diffusible or non-leachable redox mediator 561 2003
7381184 Sensor inserter assembly 136 2003
7003341 Analyte monitoring devices and methods of use 549 2003
7190988 Analyte monitoring device and methods of use 501 2003
2004/0111,017 Mass transport limited in vivo analyte sensor 200 2003
2006/0003,398 Subcutaneous glucose electrode 311 2005
2007/0233,013 Covers for tissue engaging members 154 2006
2007/0215,491 Subcutaneous Glucose Electrode 172 2007
2007/0218,097 Subcutaneous Glucose Electrode 196 2007
 
RADIOMETER MEDICAL A/S (2)
5242835 Method and apparatus for determining the concentration of oxygen 69 1992
* 6051389 Enzyme sensor 216 1999
 
RADIOMETER MEDICAL APS (2)
2006/0275,857 Enzyme sensor with a cover membrane layer covered by a hydrophilic polymer 48 2006
2006/0275,859 Enzyme sensor including a water-containing spacer layer 46 2006
 
KYOTO DAIICHI KAGAKU CO., LTD. (1)
5496453 Biosensor and method of quantitative analysis using the same 572 1994
 
TOSHIBA AMERICA RESEARCH, INC. (8)
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
* 2002/0191,558 Distributed soft handoff among IP-based base stations 3 2001
 
ANGIOTECH BIOCOATINGS CORP. (1)
2007/0299,409 Antimicrobial Needle Coating For Extended Infusion 83 2005
 
OSMETECH TECHNOLOGY INC. (1)
6264825 Binding acceleration techniques for the detection of analytes 337 1999
 
ROCHE DIABETES CARE, INC. (2)
4731726 Patient-operated glucose monitor and diabetes management system 1231 1986
2007/0007,133 Sensor with increased biocompatibility 88 2006
 
MILES INC. (3)
4810470 Volume independent diagnostic device 285 1987
* 5202261 Conductive sensors and their use in diagnostic assays 499 1991
5250439 Use of conductive sensors in diagnostic assays 413 1992
 
DATEX-OHMEDA, INC. (2)
5249576 Universal pulse oximeter probe 426 1991
6510329 Detection of sensor off conditions in a pulse oximeter 414 2001
 
LEGACY GOOD SAMARITAN HOSPITAL AND MEDICAL CENTER (3)
5711861 Device for monitoring changes in analyte concentration 728 1995
6212416 Device for monitoring changes in analyte concentration 628 1998
6466810 Implantable device for monitoring changes in analyte concentration 405 2000
 
NOVO NORDISK A/S (2)
5269891 Method and apparatus for determination of a constituent in a fluid 472 1993
2004/0063,167 Minimising calibration problems of in vivo glucose sensors 56 2003
 
Legacy Emanuel Hospital & Health Center (1)
2008/0027,301 Analyte sensing and response system 57 2006
 
ALKERMES PHARMA IRELAND LIMITED (1)
6275717 Device and method of calibrating and testing a sensor for in vivo measurement of an analyte 768 1998
 
TRIVIDIA HEALTH, INC. (2)
6743635 System and methods for blood glucose sensing 462 2002
2005/0143,675 Integrated diagnostic test system 426 2004
 
MOLTECH POWER SYSTEMS, INC. (1)
6300002 Notched electrode and method of making same 254 1999
 
The Polymer Technology Group (2)
5428123 Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecular weight range 156 1993
5756632 Systems for premeating molecules of predetermined molecular weight range 235 1995
 
SUDORMED, INC. (1)
5438984 Apparatus and method for the collection of analytes on a dermal patch 177 1993
 
BECTON, DICKINSON AND COMPANY (2)
7060059 System and method for initiating and maintaining continuous, long-term control of a concentration of a substance in a patient using a feedback or model-based controller coupled to a single-needle or multi-needle intradermal (ID) delivery device 440 2003
2006/0078,908 Multianalyte sensor 53 2005
 
KOVELMAN, PAUL H. (1)
6293925 Insertion device for an insertion set and method of using the same 736 1998
 
KHPC HOLDING (1)
5425717 Epidural catheter system utilizing splittable needle 174 1993
 
QUEEN MARY & WESTFIELD COLLEGE (1)
5749832 Monitoring systems 198 1994
 
SHARP KABUSHIKI KAISHA (1)
5331555 Electronic apparatus 377 1991
 
SKC CO., LTD. (1)
6547839 Method of making an electrochemical cell by the application of polysiloxane onto at least one of the cell components 239 2001
 
3M INNOVATIVE PROPERTIES COMPANY (2)
6407195 Tackified polydiorganosiloxane oligourea segmented copolymers and a process for making same 104 1997
7078582 Stretch removable adhesive articles and methods 112 2001
 
Transducer Research, Inc. (1)
5198771 Potentiostatic apparatus and methods 248 1991
 
IMAGYN MEDICAL TECHNOLOGIES, INC. (1)
5928130 Apparatus and method for implanting radioactive seeds in tissue 308 1998
 
CP MEDICAL, INC. (1)
2003/0225,437 Device for retaining material 211 2003
 
BIOTEK (1)
4403984 System for demand-based adminstration of insulin 462 1980
 
HYDROMER, INC. (1)
7008979 Coating composition for multiple hydrophilic applications 153 2002
 
CB-CARMEL BIOTECHNOLOGY LTD. (2)
5474552 Implantable drug delivery pump 350 1994
5513636 Implantable sensor chip 386 1994
 
THE JOHNS HOPKINS UNIVERSITY (1)
4494950 Plural module medication delivery system 1093 1982
 
ACTIVE PROTECTIVE TECHNOLOGIES, INC. (2)
2005/0067,816 Method and apparatus for body impact protection 34 2004
2005/0067,816 Method and apparatus for body impact protection 34 2004
 
NATIONAL RESEARCH COUNCIL OF CANADA (1)
5411866 Method and system for determining bioactive substances 309 1993
 
BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY (1)
5611900 Microbiosensor used in-situ 382 1995
 
BOEHRINGER MANNHEIM GMBH (1)
5507288 Analytical system for monitoring a substance to be analyzed in patient-blood 1013 1995
 
MEDISENSE, INC. (3)
4545382 Sensor for components of a liquid mixture 741 1982
4711245 Sensor for components of a liquid mixture 664 1984
5682884 Strip electrode with screen printing 504 1994
 
PICHA, GEORGE J. (1)
5564439 Infusion device for soft tissue 258 1994
 
HEMOTEQ GMBH (2)
2004/0234,575 Medical products comprising a haemocompatible coating, production and use thereof 88 2004
2005/0176,678 Compounds and method for coating surfaces in a haemocompatibe manner 79 2004
 
Sorenson Development, Inc. (2)
6965791 Implantable biosensor system, apparatus and method 394 2003
2004/0254,433 Sensor introducer system, apparatus and method 455 2003
 
Micro-Circuits Company (1)
4578215 Electrical conductivity-enhancing and protecting material 160 1983
 
QUESTSTAR MEDICAL, INC. (1)
4787398 Glucose medical monitoring system 552 1986
 
Sentron v.o.f. (1)
4858615 Catheter sensor and memory unit 343 1988
 
SCIMED LIFE SYSTEMS, INC. (1)
2006/0171,980 Implantable or insertable medical devices having optimal surface energy 88 2005
 
The University of North Carolina at Chapel Hill (1)
2007/0275,193 Functional Materials and Novel Methods for the Fabrication of Microfluidic Devices 68 2005
 
BIOTEX, INC. (2)
4378016 Artificial endocrine gland containing hormone-producing cells 178 1981
4402694 Body cavity access device containing a hormone source 195 1981
 
M-BIOTECH, INC. (2)
6268161 Biosensor 450 1999
6475750 Glucose biosensor 530 2000
 
DISETRONIC LICENSING AG (5)
5322063 Hydrophilic polyurethane membranes for electrochemical glucose sensors 779 1991
5284140 Acrylic copolymer membranes for biosensors 364 1992
5299571 Apparatus and method for implantation of sensors 771 1993
5476094 Acrylic copolymer membranes for biosensors 97 1993
5695623 Glucose measuring device 596 1994
 
BODY SCIENCE LLC (1)
5957854 Wireless medical diagnosis and monitoring equipment 792 1997
 
I-STAT CORPORATION (5)
5200051 Wholly microfabricated biosensors and process for the manufacture and use thereof 706 1989
5063081 Method of manufacturing a plurality of uniform microfabricated sensing devices having an immobilized ligand receptor 516 1990
5212050 Method of forming a permselective layer 151 1990
5466575 Process for the manufacture of wholly microfabricated biosensors 139 1992
5837454 Process for the manufacture of wholly microfabricated biosensors 350 1995
 
THE REGENTS OF THE UNIVERSITY OF NEW MEXICO (2)
4813424 Long-life membrane electrode for non-ionic species 352 1987
5476776 Immobilized enzymes for use in an electrochemical sensor 208 1994
 
Integ, Inc. (1)
5582184 Interstitial fluid collection and constituent measurement 886 1994
 
HOFFMANN-LA ROCHE INC. (1)
5931814 Dermally affixed injection device 471 1997
 
BALL SEMICONDUCTOR, INC. (1)
6546268 Glucose sensor 450 2000
 
PACESETTER, INC. (1)
6585763 Implantable therapeutic device and method 362 1998
 
LEYBOLD INFICON (1)
5703359 Composite membrane and support assembly 59 1996
 
NEW MEXICO STATE UNIVERSITY TECHNOLOGY TRANSFER CORPORATION (1)
5676820 Remote electrochemical sensor 222 1995
 
Ad-Tech Medical Instrument Corp. (1)
4805625 Sphenoidal electrode and insertion method 345 1987
 
MICROCHIPS BIOTECH, INC. (1)
2005/0077,584 Hermetically sealed microchip reservoir devices 167 2004
 
Institute fur Diabetestechnologie Gemeinnutzige Forschungs- und Entwicklungsgesellschaft mbH (1)
4919141 Implantable electrochemical sensor 533 1988
 
CERCACOR LABORATORIES, INC. (1)
5743262 Blood glucose monitoring system 863 1995
 
ASULAB S.A. (1)
5502396 Measuring device with connection for a removable sensor 416 1994
 
P&V Consulting GmbH & Co. KG (1)
7248906 Method and device for monitoring analyte concentration by optical detection 52 2002
 
ABBOTT LABORATORIES (3)
6093156 Method and apparatus for obtaining blood for diagnostic tests 592 1997
6730200 Electrochemical sensor for analysis of liquid samples 279 2001
6801041 Sensor having electrode for determining the rate of flow of a fluid 364 2002
 
OPTICAL SENSORS INCORPORATED (2)
5976085 In situ calibration system for sensors located in a physiologic line 412 1997
2003/0225,324 Noninvasive detection of a physiologic Parameter within a body tissue of a patient 58 2002
 
MINI/MED INC., A DELAWARE CORP. D/B/A MINIMED TECHNOLOGIES (1)
5482473 Flex circuit connector 513 1994
 
SIEMENS AKTIENGESELLSCHAFT (1)
5746898 Electrochemical-enzymatic sensor 156 1992
 
ARBMETRICS LLC (1)
6343225 Implantable glucose sensor 338 1999
 
CAMBRIDGE LIFE SCIENCES PLC (1)
4970145 Immobilized enzyme electrodes 418 1988
 
GODO KAISHA IP BRIDGE 1 (3)
2006/0262,987 Variable length coding method and variable length decoding method 0 2006
2006/0262,987 Variable length coding method and variable length decoding method 0 2006
2006/0262,987 Variable length coding method and variable length decoding method 0 2006
 
The Coca-Cola Company (1)
6465066 Packaged potable liquid and packaging for potable liquid 44 1999
 
UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION (1)
6256522 Sensors for continuous monitoring of biochemicals and related method 358 1995
 
BAYER HEALTHCARE LLC (1)
5653863 Method for reducing bias in amperometric sensors 579 1996
 
CRANFIELD UNIVERSITY (1)
* 2005/0056,551 Electrochemical detection of analytes 138 2004
 
UNOMEDICAL A/S (2)
7070580 Infusion device and an adhesive sheet material and a release liner 242 2003
2004/0204,687 Injector device for placing a subcutaneous infusion set 454 2003
 
SUPREX CORPORATION (1)
5954954 Method and apparatus for determination of analyte concentration 185 1997
 
AGFA-GEVAERT N.V. (1)
6274285 Radiation-sensitive recording material for the production of driographic offset printing plates 223 1999
 
Cardiac Pacemakers, Inc. (1)
2003/0036,773 Systems and methods for treatment of coronary artery disease 268 2002
 
ROBERT BOSCH GMBH (1)
6325979 Device for gas-sensoring electrodes 230 1999
 
ALLERGAN, INC. (1)
5833603 Implantable biosensing transponder 965 1996
 
FUTREX, INC. (1)
5068536 Method for providing custom calibration for near infrared instruments for measurement of blood glucose 610 1991
 
YACYNYCH, ALEXANDER M. (1)
5286364 Surface-modified electochemical biosensor 460 1991
 
W. L. GORE & ASSOCIATES, INC. (1)
6737158 Porous polymeric membrane toughened composites 100 2002
 
KARUBE, ISAO (1)
4975175 Miniaturized oxygen electrode and miniaturized biosensor and production process thereof 196 1989
 
CASIO COMPUTER CO., LTD. (1)
5316008 Measurement of electrocardiographic wave and sphygmus 421 1991
 
The Penn State Research Foundation (1)
2007/0259,217 Materials and configurations for scalable microbial fuel cells 193 2007
 
PANASONIC HEALTHCARE HOLDINGS CO., LTD. (1)
6059946 Biosensor 360 1998
 
CINVENTION AG (1)
2006/0177,379 Composition comprising an agent providing a signal, an implant material and a drug 130 2005
 
RUBICON INVESTMENTS, INC. (1)
6117290 System and method for measuring a bioanalyte such as lactate 530 1998
 
MONITORING TECHNOLOGY LIMITED (1)
5354449 pH electrode 194 1992
 
Baltimore Biomedical, Inc. (1)
6175753 Methods and mechanisms for quick-placement electroencephalogram (EEG) electrodes 64 1999
 
ALZA CORPORATION (2)
6219574 Device and method for enchancing transdermal sampling 611 1997
6091975 Minimally invasive detecting device 750 1998
 
THERASENSE, INC. (9)
5262305 Interferant eliminating biosensors 743 1991
5356786 Interferant eliminating biosensor 868 1993
5665222 Soybean peroxidase electrochemical sensor 495 1995
6120676 Method of using a small volume in vitro analyte sensor 1064 1999
6162611 Subcutaneous glucose electrode 913 2000
6514718 Subcutaneous glucose electrode 743 2001
2002/0084,196 Small volume in vitro analyte sensor and methods 426 2001
2003/0100,040 Blood analyte monitoring through subcutaneous measurement 516 2002
6881551 Subcutaneous glucose electrode 690 2003
 
MEDTRONIC MINIMED, INC. (39)
5390671 Transcutaneous sensor insertion set 1031 1994
5391250 Method of fabricating thin film sensors 983 1994
5569186 Closed loop infusion pump system with removable glucose sensor 1093 1994
5605152 Optical glucose sensor 214 1994
5568806 Transcutaneous sensor insertion set 780 1995
5586553 Transcutaneous sensor insertion set 966 1995
6011984 Detection of biological molecules using chemical amplification and optical sensors 449 1996
5851197 Injector for a subcutaneous infusion set 639 1997
5954643 Insertion set for a transcutaneous sensor 550 1997
6093172 Injector for a subcutaneous insertion set 800 1997
6248067 Analyte sensor and holter-type monitor system and method of using the same 871 1999
6368141 Insertion set for a transcutenous sensor with cable connector lock mechanism 339 1999
6413393 Sensor including UV-absorbing polymer and method of manufacture 410 1999
6477395 Implantable enzyme-based monitoring systems having improved longevity due to improved exterior surfaces 401 1999
6809653 Telemetered characteristic monitor system and method of using the same 899 1999
6558320 Handheld personal data assistant (PDA) with a medical device and method of using the same 1151 2000
6360888 Glucose sensor package system 501 2000
6484045 Analyte sensor and method of making the same 385 2000
6424847 Glucose monitor calibration methods 758 2000
6418332 Test plug and cable for a glucose monitor 326 2000
6368274 Reusable analyte sensor site and method of using the same 421 2000
6558351 Closed loop system for controlling insulin infusion 941 2000
6512939 Implantable enzyme-based monitoring systems adapted for long term use 433 2000
7003336 Analyte sensor method of making the same 440 2001
6520326 Glucose sensor package system 509 2001
6809507 Implantable sensor electrodes and electronic circuitry 233 2001
7153265 Anti-inflammatory biosensor for reduced biofouling and enhanced sensor performance 269 2002
6895263 Real time self-adjusting calibration algorithm 740 2002
2004/0074,785 Analyte sensors and methods for making them 433 2002
6892085 Glucose sensor package system 666 2002
7267665 Closed loop system for controlling insulin infusion 670 2002
7207974 Insertion device for an insertion set and method of using the same 324 2003
2005/0027,182 System for monitoring physiological characteristics 317 2003
7399277 System for monitoring physiological characteristics 365 2004
2005/0272,989 Analyte sensors and methods for making and using them 169 2004
7098803 Telemetered characteristic monitor system and method of using the same 622 2004
2007/0173,711 Sensor with layered electrodes 200 2005
2007/0135,698 Biosensors and methods for making and using them 76 2005
2007/0227,907 Methods and materials for controlling the electrochemistry of analyte sensors 179 2006
 
SAN MEDITECH (HUZHOU) CO., LTD (1)
2008/0033,269 Catheter-free implantable needle biosensor 51 2005
 
ADVANCED CARDIOVASCULAR SYSTEMS, INC. (11)
6498941 Catheter based probe and method of using same for detecting chemical analytes 197 2000
7279174 Stent coatings comprising hydrophilic additives 110 2003
2004/0224,001 Stent coatings comprising hydrophilic additives 149 2003
2005/0118,344 Temperature controlled crimping 81 2003
2006/0047,095 Polymers of fluorinated monomers and hydrophilic monomers 62 2004
2006/0067,908 Methacrylate copolymers for medical devices 89 2004
2005/0119,720 Temperature controlled crimping 105 2004
2006/0134,165 Polymers of fluorinated monomers and hydrocarbon monomers 65 2004
7357793 Polymers of fluorinated and hydrophilic monomers 46 2006
2006/0269,586 Polymers of fluorinated monomers and hydrophilic monomers 57 2006
2008/0021,008 Stent coatings comprising hydrophilic additives 42 2007
 
WILLIAM REBER, L.L.C. (1)
5961451 Noninvasive apparatus having a retaining member to retain a removable biosensor 670 1997
 
POLYTECHNIC UNIVERSITY (1)
5089112 Electrochemical biosensor based on immobilized enzymes and redox polymers 535 1990
 
OMRON HEALTHCARE CO., LTD. (1)
5462051 Medical communication system 599 1994
 
ARKRAY, INC. (1)
2004/0242,982 Measuring instrument, installation body, and density measurer 101 2004
 
ASAHI KASEI CHEMICALS CORPORATION (1)
6569309 Fuel cell type reactor and method for producing a chemical compound by using the same 149 2001
 
COVIDIEN LP (2)
6553241 Oximeter sensor with digital memory encoding sensor expiration data 422 2001
2007/0200,267 Pressurized dip coating system 44 2007
 
THERMOMETRICS, INC. (1)
4554927 Pressure and temperature sensor 384 1983
 
DEXCOM, INC. (64)
4757022 Biological fluid measuring device 892 1987
4994167 Biological fluid measuring device 566 1988
* 6001067 Device and method for determining analyte levels 812 1997
6741877 Device and method for determining analyte levels 664 2000
6862465 Device and method for determining analyte levels 562 2001
2003/0032,874 Sensor head for use with implantable devices 620 2001
6931327 System and methods for processing analyte sensor data 720 2003
7192450 Porous membranes for use with implantable devices 603 2003
7110803 Device and method for determining analyte levels 521 2003
2005/0242,479 IMPLANTABLE ANALYTE SENSOR 364 2004
2005/0245,795 IMPLANTABLE ANALYTE SENSOR 600 2004
2005/0245,799 IMPLANTABLE ANALYTE SENSOR 616 2004
2005/0031,689 Biointerface membranes incorporating bioactive agents 585 2004
2005/0033,132 Analyte measuring device 449 2004
* 2006/0015,020 SYSTEMS AND METHODS FOR MANUFACTURE OF AN ANALYTE-MEASURING DEVICE INCLUDING A MEMBRANE SYSTEM 600 2004
7074307 Electrode systems for electrochemical sensors 694 2004
7379765 Oxygen enhancing membrane systems for implantable devices 361 2004
2005/0051,427 Rolled electrode array and its method for manufacture 334 2004
* 2005/0176,136 AFINITY DOMAIN FOR ANALYTE SENSOR 464 2004
7471972 Sensor head for use with implantable devices 400 2004
7136689 Device and method for determining analyte levels 426 2005
7310544 Methods and systems for inserting a transcutaneous analyte sensor 536 2005
7497827 Transcutaneous analyte sensor 414 2005
2006/0019,327 TRANSCUTANEOUS ANALYTE SENSOR 560 2005
2006/0036,140 TRANSCUTANEOUS ANALYTE SENSOR 556 2005
2006/0036,141 TRANSCUTANEOUS ANALYTE SENSOR 612 2005
7494465 Transcutaneous analyte sensor 438 2005
* 2006/0229,512 Cellulosic-based interference domain for an analyte sensor 269 2006
2006/0142,651 Analyte sensor 217 2006
2006/0183,984 Analyte sensor 352 2006
2006/0183,985 Analyte sensor 447 2006
* 2006/0258,761 Silicone based membranes for use in implantable glucose sensors 196 2006
2006/0189,856 Oxygen enhancing membrane systems for implantable devices 199 2006
2006/0200,019 Oxygen enhancing membrane systems for implantable devices 131 2006
2006/0200,970 Transcutaneous analyte sensor 92 2006
2006/0198,864 Biointerface membranes incorporating bioactive agents 136 2006
2006/0204,536 Biointerface membranes incorporating bioactive agents 53 2006
* 7366556 Dual electrode system for a continuous analyte sensor 411 2006
7424318 Dual electrode system for a continuous analyte sensor 406 2006
7460898 Dual electrode system for a continuous analyte sensor 402 2006
7467003 Dual electrode system for a continuous analyte sensor 411 2006
2007/0032,718 Device and method for determining analyte levels 159 2006
* 2007/0173,709 Membranes for an analyte sensor 105 2007
* 2007/0173,710 Membranes for an analyte sensor 133 2007
2007/0163,880 ANALYTE SENSOR 404 2007
2007/0203,966 TRANSCUTANEOUS ANALYTE SENSOR 571 2007
2007/0208,246 TRANSCUTANEOUS ANALYTE SENSOR 351 2007
2008/0045,824 SILICONE COMPOSITION FOR BIOCOMPATIBLE MEMBRANE 383 2007
2009/0076,360 TRANSCUTANEOUS ANALYTE SENSOR 438 2007
2008/0021,666 SYSTEM AND METHODS FOR PROCESSING ANALYTE SENSOR DATA 543 2007
2008/0183,061 SYSTEM AND METHODS FOR PROCESSING ANALYTE SENSOR DATA 477 2008
2008/0188,731 TRANSCUTANEOUS ANALYTE SENSOR 428 2008
2008/0194,935 TRANSCUTANEOUS ANALYTE SENSOR 426 2008
2008/0214,915 TRANSCUTANEOUS ANALYTE SENSOR 430 2008
2008/0194,938 TRANSCUTANEOUS MEDICAL DEVICE WITH VARIABLE STIFFNESS 384 2008
2008/0214,918 DUAL ELECTRODE SYSTEM FOR A CONTINUOUS ANALYTE SENSOR 392 2008
2008/0208,025 LOW OXYGEN IN VIVO ANALYTE SENSOR 434 2008
2008/0296,155 LOW OXYGEN IN VIVO ANALYTE SENSOR 436 2008
2008/0275,313 TRANSCUTANEOUS ANALYTE SENSOR 404 2008
2009/0045,055 SENSOR HEAD FOR USE WITH IMPLANTABLE DEVICES 425 2008
2009/0076,356 DUAL ELECTRODE SYSTEM FOR A CONTINUOUS ANALYTE SENSOR 434 2008
2009/0143,660 TRANSCUTANEOUS ANALYTE SENSOR 389 2008
2009/0099,436 DUAL ELECTRODE SYSTEM FOR A CONTINUOUS ANALYTE SENSOR 408 2008
2009/0124,879 TRANSCUTANEOUS ANALYTE SENSOR 397 2009
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (1)
2006/0109,185 Portable radio communication apparatus provided with a part of a housing operating as an antenna 43 2005
 
MEDTRONIC, INC. (1)
2006/0173,444 Ambulatory medical apparatus with hand held communication device 489 2006
 
Nishitomo Co., LTD. (1)
5137028 Clinical thermometer for women 372 1990
 
THEREX LIMITED PARTNERSHIP (1)
4955861 Dual access infusion and monitoring system 246 1988
 
WAVEFORM TECHNOLOGIES, INC. (4)
6613379 Implantable analyte sensor 338 2001
7120483 Methods for analyte sensing and measurement 181 2003
2006/0183,871 Biosensor membrane material 150 2006
2006/0263,839 COMBINED DRUG DELIVERY AND ANALYTE SENSOR APPARATUS 89 2006
 
NEC CORPORATION (3)
5384028 Biosensor with a data memory 455 1993
5795774 Biosensor 424 1997
6144871 Current detecting sensor and method of fabricating the same 241 1999
 
JPMORGAN CHASE BANK, AS ADMINISTRATIVE AGENT (1)
6081735 Signal processing apparatus 804 1997
 
GENORX (1)
2004/0248,282 Electronic detection of biological molecules using thin layers 178 2004
 
NOVA BIOMEDICAL CORPORATION (1)
5352348 Method of using enzyme electrode 372 1992
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (1)
6413396 Enzyme electrode sensor and manufacturing method thereof 36 2000
 
ROCHE DIAGNOSTICS CORPORATION (1)
6214185 Sensor with PVC cover membrane 249 1998
 
ROCHE DIAGNOSTICS INTERNATIONAL AG (1)
7335286 Immersion sensor for measuring the concentration of an analyte with the help of an oxidase 44 2003
 
BLERSCH, JUERGEN, DR. (1)
2005/0079,200 Biocompatibly coated medical implants 139 2004
 
Imperial College of Science, Technology, and Medicine (1)
5462645 Dialysis electrode device 395 1994
 
BOC HEALTH CARE, INC. (1)
5155149 Silicone polyurethane copolymers containing oxygen sensitive phosphorescent dye compounds 62 1991
 
ST. JUDE MEDICAL, INC. (1)
4795542 Electrochemical concentration detector device 148 1986
 
TRUSTEES OF TUFTS COLLEGE (1)
7115884 Self-encoding fiber optic sensor 219 1997
 
NISSAN MOTOR CO., LTD. (1)
5034112 Device for measuring concentration of nitrogen oxide in combustion gas 298 1989
 
ROCHE DIAGNOSTICS GMBH (1)
5879373 System and method for the determination of tissue properties 372 1995
 
CHILDREN'S HOSPITAL MEDICAL CENTER (2)
4680268 Implantable gas-containing biosensor and method for measuring an analyte such as glucose 553 1985
4721677 Implantable gas-containing biosensor and method for measuring an analyte such as glucose 540 1987
 
SEGARS CALIFORNIA PARTNERS, LP (2)
5330634 Calibration solutions useful for analyses of biological fluids and methods employing same 551 1992
5932175 Sensor apparatus for use in measuring a parameter of a fluid sample 77 1996
 
Goldstar Co., Ltd. (1)
5571395 Breath alcohol analyzer using a biosensor 244 1994
 
BAXTER INTERNATIONAL INC. (1)
4974929 Fiber optical probe connector for physiologic measurement devices 462 1990
 
HOSPIRA, INC. (1)
5310469 Biosensor with a membrane containing biologically active material 318 1991
 
SIEMENS HEALTHCARE DIAGNOSTICS INC. (2)
5494562 Electrochemical sensors 596 1994
5707502 Sensors for measuring analyte concentrations and methods of making same 394 1996
 
STICHTING DUTCH POLYMER INSTITUTE (1)
2006/0293,487 POLYURETHANES, POLYURETHANEUREAS AND POLYUREAS AND USE THEREOF 46 2006
 
KIMBERLY-CLARK WORLDWIDE, INC. (1)
2004/0078,219 Healthcare networks with biosensors 535 2002
 
CASE WESTERN RESERVE UNIVERSITY (3)
4571292 Apparatus for electrochemical measurements 501 1982
4655880 Apparatus and method for sensing species, substances and substrates using oxidase 562 1983
2004/0180,391 Sliver type autonomous biosensors 92 2003
 
MAQUET CARDIOVASCULAR LLC (1)
5282848 Self-supporting woven vascular graft 396 1993
 
Cyngnus, Inc. (1)
6653091 Method and device for predicting physiological values 293 2001
 
UNIVERSITY OF SOUTH FLORIDA (1)
2006/0289,307 Epoxy Enhanced Polymer Membrane to Increase Durability of Biosensors 56 2005
 
LIFESCAN SCOTLAND LIMITED (1)
2005/0139,489 Method of reducing the effect of direct and mediated interference current in an electrochemical test strip 311 2004
 
LIFESCAN, INC. (3)
5863400 Electrochemical cells 184 1997
6793632 Percutaneous biological fluid constituent sampling and measurement devices and methods 207 2001
2002/0188,185 PERCUTANEOUS BIOLOGICAL FLUID SAMPLING AND ANALYTE MEASUREMENT DEVICES AND METHODS 218 2001
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
5266179 Quantitative analysis method and its system using a disposable sensor 792 1991
6972080 Electrochemical device for moving particles covered with protein 151 2000
 
UNIVERSITY, THOMAS JEFFERSON, A PA CORP. (1)
6122536 Implantable sensor and system for measurement and control of blood constituent levels 770 1998
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
E. HELLER & COMPANY (40)
8880137 Analyte monitoring device and methods of use 2 2003
8612159 Analyte monitoring device and methods of use 1 2004
8672844 Analyte monitoring device and methods of use 0 2004
9011331 Analyte monitoring device and methods of use 0 2004
9042953 Analyte monitoring device and methods of use 0 2007
9014773 Analyte monitoring device and methods of use 0 2007
8409131 Analyte monitoring device and methods of use 4 2007
8774887 Analyte monitoring device and methods of use 0 2007
9066694 Analyte monitoring device and methods of use 0 2007
8649841 Analyte monitoring device and methods of use 0 2007
9066695 Analyte monitoring device and methods of use 0 2007
8734346 Analyte monitoring device and methods of use 0 2007
8670815 Analyte monitoring device and methods of use 0 2007
9072477 Analyte monitoring device and methods of use 0 2007
8617071 Analyte monitoring device and methods of use 0 2007
8666469 Analyte monitoring device and methods of use 4 2007
8260392 Analyte monitoring device and methods of use 11 2008
8224413 Analyte monitoring device and methods of use 0 2008
8273022 Analyte monitoring device and methods of use 3 2009
8840553 Analyte monitoring device and methods of use 0 2009
8744545 Analyte monitoring device and methods of use 0 2009
8738109 Analyte monitoring device and methods of use 0 2009
8597189 Analyte monitoring device and methods of use 0 2009
8734348 Analyte monitoring device and methods of use 0 2009
8660627 Analyte monitoring device and methods of use 0 2009
8391945 Analyte monitoring device and methods of use 0 2009
8346336 Analyte monitoring device and methods of use 0 2009
8366614 Analyte monitoring device and methods of use 21 2009
8380273 Analyte monitoring device and methods of use 4 2009
8473021 Analyte monitoring device and methods of use 0 2009
8306598 Analyte monitoring device and methods of use 2 2009
8275439 Analyte monitoring device and methods of use 2 2009
8265726 Analyte monitoring device and methods of use 2 2009
8641619 Analyte monitoring device and methods of use 0 2009
8622906 Analyte monitoring device and methods of use 0 2009
8372005 Analyte monitoring device and methods of use 0 2009
8357091 Analyte monitoring device and methods of use 2 2009
8353829 Analyte monitoring device and methods of use 36 2009
9326714 Analyte monitoring device and methods of use 0 2010
8226558 Analyte monitoring device and methods of use 2 2010
 
Cardiac Pacemakers, Inc. (1)
* 2009/0221,885 Optical Window Assembly for Implantable Medical Device 2 2009
 
3M INNOVATIVE PROPERTIES COMPANY (3)
8647115 Syringes for dispensing multi-component material 1 2010
D679810 Dental syringe 0 2011
D669170 Dental syringe 1 2011
 
ABBOTT DIABETES CARE INC. (26)
8668645 Analyte monitoring device and methods of use 3 2003
8974386 Analyte monitoring device and methods of use 1 2005
8480580 Analyte monitoring device and methods of use 3 2007
8231532 Analyte monitoring device and methods of use 4 2007
9498159 Analyte monitoring device and methods of use 0 2007
9011332 Analyte monitoring device and methods of use 0 2007
8255031 Analyte monitoring device and methods of use 0 2009
8226555 Analyte monitoring device and methods of use 3 2009
8162829 Analyte monitoring device and methods of use 0 2009
8162830 Analyte monitoring device and methods of use 0 2009
8688188 Analyte monitoring device and methods of use 6 2009
8465425 Analyte monitoring device and methods of use 5 2009
8346337 Analyte monitoring device and methods of use 27 2009
8175673 Analyte monitoring device and methods of use 1 2009
8235896 Analyte monitoring device and methods of use 0 2009
8177716 Analyte monitoring device and methods of use 2 2009
8226557 Analyte monitoring device and methods of use 1 2009
8287454 Analyte monitoring device and methods of use 6 2010
9066697 Analyte monitoring device and methods of use 0 2011
8652043 Analyte monitoring device and methods of use 0 2012
8920319 Analyte monitoring device and methods of use 0 2012
9078607 Analyte monitoring device and methods of use 1 2013
9020573 Analyte monitoring device and methods of use 0 2013
8915850 Analyte monitoring device and methods of use 1 2014
9326716 Analyte monitoring device and methods of use 0 2014
9610034 Analyte monitoring device and methods of use 0 2015
 
DEXCOM, INC. (1)
9451908 Analyte sensor 0 2012
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 20, 2018
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 20, 2022
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00