Method of filtering certain particles from a fluid using a depth loading filtration media

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6524488
APP PUB NO 20020027101A1
SERIAL NO

09106506

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A filtration media is formed from at least one structured polymeric layer, wherein a structured surface is defined within the layer. Layers may be configured as a stack that has the structured surfaces defining a plurality of ordered inlets open through a face of the stack and corresponding ordered fluid pathways, thereby forming an ordered, porous volume. The ordered fluid pathways may be defined by a plurality of flow channels formed within the structured surfaces of the structured layers, or may be defined by a plurality of protuberances formed in an ordered pattern within the structured surfaces of the structured layers.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
3M INNOVATIVE PROPERTIES COMPANYST PAUL, MN8719
Minnesota Mining and Manufacturing CompanyST PAUL, MN2022

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Insley, Thomas I West Lakeland Township, MN 61 1567
Johnston, Raymond P Lake Elmo, MN 75 1716

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Minnesota Mining and Manufacturing Company (16)
RE31285 Method for manufacturing a filter of electrically charged electret fiber material and electret filters obtained according to said method 108 1981
4668558 Shaped plastic articles having replicated microstructure surfaces 180 1986
4950549 Polypropylene articles and method for preparing same 59 1989
5175030 Microstructure-bearing composite plastic articles and method of making 307 1989
5025052 Fluorochemical oxazolidinones 152 1990
5069403 Drag reduction article 72 1990
5078925 Preparing polypropylene articles 37 1990
5256231 Method for making a sheet of loop material 154 1990
5077870 Mushroom-type hook strip for a mechanical fastener 286 1990
5158557 Refastenable adhesive tape closure 53 1990
5133516 Drag reduction article 97 1991
5514120 Liquid management member for absorbent articles 88 1993
5496507 Method of charging electret filter media 203 1994
5472481 Oily mist resistant electret filter media 120 1995
5656368 Fibrous filtration face mask having corrugated polymeric microfiber filter layer 52 1995
5728446 Liquid management film for absorbent articles 55 1995
 
Other [Check patent profile for assignment information] (8)
4313741 Electric dust collector 45 1980
* 4686041 Molecular differentiation filter 19 1985
* 4751000 Multiple-disc type filters 14 1987
* 5037548 Multiple-disc filter having smaller passageways on the outlet side 6 1987
* 4978450 Filtering element 9 1988
5069404 Elliptical ram air pressurized airfoil parachute 10 1989
5099026 Fluorochemical oxazolidinones 80 1991
5176667 Liquid collection apparatus 58 1992
 
SIL-FAB Corporation (1)
4579555 Surgical gravity drain having aligned longitudinally extending capillary drainage channels 99 1983
 
XEROX CORPORATION (1)
4639748 Ink jet printhead with integral ink filter 78 1985
 
P B Diagnostic Systems, Inc. (1)
4906439 Biological diagnostic device and method of use 140 1987
 
FLSMIDTH A/S (1)
5477891 Woven filter fabric 16 1994
 
CELLECTRICON AB (1)
5376252 Microfluidic structure and process for its manufacture 554 1992
 
MEFIAG DIVISION, MET-PRO CORPORATION (1)
* 5112503 Modular filter assembly 19 1990
 
Compa Computer Corporation (1)
5440332 Apparatus for page wide ink jet printing 50 1992
 
VACUMET CORP. (1)
4913858 Method of embossing a coated sheet with a diffraction or holographic pattern 104 1988
 
CLINICAL DIAGNOSTIC SYSTEMS INC. (2)
4271119 Capillary transport device having connected transport zones 141 1980
4413407 Method for forming an electrode-containing device with capillary transport between electrodes 85 1981
 
NCSRT, INC. (1)
* 4867876 Filter plate, filter plate element, and filter comprising same 53 1987
 
CLEMSON UNIVERSITY (1)
5200248 Open capillary channel structures, improved process for making capillary channel structures, and extrusion die for use therein 129 1991
 
VELCRO INDUSTRIES B.V. (1)
4775310 Apparatus for making a separable fastener 144 1986
 
THE SCOTT FETZER COMPANY (1)
5405434 Electrostatic particle filtration 70 1993
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (2)
5651900 Microfabricated particle filter 86 1994
* 5798042 Microfabricated filter with specially constructed channel walls, and containment well and capsule constructed with such filters 128 1996
 
L'OREAL (1)
4421859 Assessment of the state of change of keratin fibers 4 1981
 
3M INNOVATIVE PROPERTIES COMPANY (2)
5450235 Flexible cube-corner retroreflective sheeting 191 1993
5691846 Ultra-flexible retroreflective cube corner composite sheetings and methods of manufacture 230 1995
 
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (1)
5527588 Micro heat pipe panels and method for producing same 28 1995
 
ACTIMED LABORATORIES, INC. (1)
5411858 Manufacturing process for sample initiated assay device 47 1993
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (1)
4392362 Micro miniature refrigerators 129 1981
 
TORAY INDUSTRIES, INC. (1)
5057710 Electret materials and the method for preparing the electret materials 99 1990
 
MILOW LTD. (1)
* 5797978 Air filter including electrostatic precipitation, and method of operating same 9 1995
 
JAPAN VILENE COMPANY, LTD. (1)
4592815 Method of manufacturing an electret filter 186 1985
 
The Procter & Gamble Company (1)
5368910 Macroscopically expanded plastic web having improved fluid drainage 53 1993
 
AVERY DENNISON CORPORATION (1)
4601861 Methods and apparatus for embossing a precision optical pattern in a resinous sheet or laminate 197 1984
 
PMT Inc. (1)
4533352 Microsurgical flexible suction mat 96 1983
 
BRITISH TECHNOLOGY GROUP LIMITED (1)
4798850 Blended-fibre filter material 73 1987
 
OCCIDENTAL CHEMICAL CORPORATION (1)
4758481 Fuel cell with improved separation 36 1986
 
EDWARDS LIFESCIENCES CORPORATION (1)
5437651 Medical suction apparatus 771 1993
 
AEROJET-GENERAL CORPORATION (1)
* 5614093 Discrete pore platelet filter manufactured by electropolishing 6 1995
 
KUBOTA CORPORATION (1)
5651888 Filtration membrane cartridge 29 1996
 
The United States of America as represented by the Secretary of the Navy (1)
5158030 Damped flexible seal 11 1992
 
AGILENT TECHNOLOGIES, INC. (1)
5932315 Microfluidic structure assembly with mating microfeatures 93 1997
 
INTERPORE ORTHOPAEDICS (1)
* 5455100 Porous articles and methods for producing same 61 1993
 
Messerschmidt-Bolkow-Blohm (2)
5152060 Process for manufacturing fine-structured bodies 45 1991
5249359 Process for manufacturing finely structured bodies such as heat exchangers 35 1992
 
DYCONEX AG (1)
* 5698299 Thin laminated microstructure with precisely aligned openings 24 1995
 
Vacco Industries, Inc. (1)
* 4726900 Stacked sheet filter element 36 1986
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
* 5055118 Dust-collecting electrode unit 37 1989
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
FUJI XEROX CO., LTD. (1)
* 2011/0042,279 DEVICE AND METHOD FOR CLASSIFYING PARTICLES 2 2010
 
Other [Check patent profile for assignment information] (4)
* 7217309 Microporous paper filter for particulates 6 2004
9815068 Electret webs with charge-enhancing additives 0 2013
9700912 Fluid transport media 0 2013
9815067 Electret webs with charge-enhancing additives 0 2014
 
GYROS (2)
* 7238255 Microfluidic device and its manufacture 6 2002
* 2003/0129,360 Microfluidic device and its manufacture 2 2002
 
Velocys, Inc. (2)
8802039 Microchannel technology having structures with reduced material and enhanced volumetric productivity 0 2009
* 2011/0147,665 Microchannel Technology Having Structures With Reduced Material and Enhanced Volumetric Productivity 3 2009
 
3M INNOVATIVE PROPERTIES COMPANY (8)
* 6752889 Contoured layer channel flow filtration media 15 2001
7244291 Electret article having high fluorosaturation ratio 12 2005
7244292 Electret article having heteroatoms and low fluorosaturation ratio 14 2005
* 2006/0243,138 Electret article having high fluorosaturation ratio 5 2005
7955570 Low pressure drop, highly active catalyst systems using catalytically active gold 6 2007
* 2007/0222,119 ELECTRET ARTICLE HAVING HETEROATOMS AND LOW FLUOROSATURATION RATIO 0 2007
* 2010/0089,819 PLEATED MULTI-LAYER FILTER MEDIA AND CARTRIDGE 0 2009
7910790 Medical article having fluid control film 1 2010
 
AAF-MCQUAY INC. (1)
* 2007/0271,887 Nestable Filter and Frame 15 2006
 
NEOPHOTONICS CORPORATION (1)
* 6875257 Particle filter for microelectromechanical systems 5 2002
 
FKA DISTRIBUTING CO., LLC (2)
* 9005347 Air purifier 2 2012
* 2013/0061,754 AIR PURIFIER 0 2012
 
IMAGINE TF, LLC (1)
* 2014/0224,658 FLUID FILTERS AND METHODS OF USE 0 2014
 
ARENA INDUSTRIES, LLC (1)
* 7320261 Animal skin and eye moisture and heat simulator 4 2005
 
EASTMAN CHEMICAL COMPANY (1)
* 2006/0021,302 Anti-microbial air filter 12 2005
 
DARWIN TECHNOLOGY INTERNATIONAL LIMITED (2)
* 7014688 Air cleaning device 13 2004
* 2004/0226,448 Air cleaning device 9 2004
* Cited By Examiner