US Patent No: 6,329,793

Number of patents in Portfolio can not be more than 2000

Method and apparatus for charging a battery

Stats

See full text
ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An apparatus for charging a battery, includes a first electrical connector configured to couple to a positive terminal of the battery and a second electrical connector configured to couple to a negative terminal of the battery. The first and second connectors are used to charge the battery. A microprocessor is configured to test the battery and provide an encrypted output related to the battery test.

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

First Claim

See full text

all claims..

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
MIDTRONICS, INC.WILLOWBROOK, IL148

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bertness, Kevin I Batavia, IL 206 5786
McShane, Stephen J Oak Brook, IL 29 1256

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MIDTRONICS, INC. (18)
5,583,416 Apparatus and method for step-charging batteries to optimize charge acceptance 140 1994
5,469,043 Method for optimizing the charging of lead-acid batteries and an interactive charger 139 1994
5,574,355 Method and apparatus for detection and control of thermal runaway in a battery under charge 150 1995
5,656,920 Method and apparatus for charging a lead-acid battery 134 1995
5,592,093 Electronic battery testing device loose terminal connection detection via a comparison circuit 144 1995
5,589,757 Apparatus and method for step-charging batteries to optimize charge acceptance 147 1995
5,757,192 Method and apparatus for detecting a bad cell in a storage battery 146 1996
6,051,976 Method and apparatus for auditing a battery test 138 1996
5,821,756 Electronic battery tester with tailored compensation for low state-of charge 153 1996
5,831,435 Battery tester for JIS Standard 156 1997
5,945,829 Midpoint battery monitoring 144 1997
6,081,098 Method and apparatus for charging a battery 145 1997
5,914,605 Electronic battery tester 147 1998
6,037,751 Method and apparatus for charging batteries 140 1998
6,172,505 Electronic battery tester 138 1999
6,104,167 Method and apparatus for charging a battery 133 1999
6,091,245 Method and apparatus for auditing a battery test 133 1999
6,163,156 Electrical connection for electronic battery tester 122 1999
 
Allied Signal (4)
4,745,349 Apparatus and method for charging and testing batteries 161 1986
4,876,495 Apparatus and method for charging and testing batteries 148 1988
4,937,528 Method for monitoring automotive battery status 203 1988
4,968,942 Method for monitoring aircraft battery status 148 1989
 
BLACK & DECKER INC. (3)
4,392,101 Method of charging batteries and apparatus therefor 241 1982
5,449,997 Battery charging system having logarithmic analog-to-digital converter with automatic scaling of analog signal 147 1994
5,642,031 Battery recharging system with state of charge detection that initially detects whether a battery to be charged is already at or near full charge to prevent overcharging 145 1994
 
CHRYSLER GROUP LLC (3)
5,561,380 Fault detection system for electric automobile traction system having floating ground 172 1995
5,808,469 Battery monitor for electric vehicles 150 1997
6,008,652 Battery tub tester 124 1998
 
NISSAN MOTOR CO., LTD. (3)
4,678,998 Battery condition monitor and monitoring method 195 1985
5,699,050 Battery capacity meter 144 1996
6,072,300 Battery state diagnostic apparatus for battery set and battery module charger/discharger 143 1998
 
PEI 1991 ACQUISITION, INC. (3)
4,315,204 Ripple detector for automotive alternator battery charging systems 152 1980
4,379,990 Fault detection and diagnostic system for automotive battery charging systems 193 1980
4,369,407 Regulator tester 133 1981
 
SNAP-ON TECHNOLOGIES, INC. (3)
5,254,952 Automatic battery and charging system tester with motor-driven carbon pile loading 151 1991
5,426,371 Automatic battery and charging system tester with motor-driven carbon pile loading 146 1993
5,773,978 Battery impedance monitor 157 1996
 
AIMS Systems, Inc. (2)
5,710,503 On-line battery monitoring system with defective cell detection capability 168 1996
6,031,354 On-line battery management and monitoring system and method 179 1997
 
ALLIEDSIGNAL INC. (2)
5,281,919 Automotive battery status monitor 203 1992
5,929,609 Vehicular power management system and method 146 1998
 
APPLE COMPUTER, INC. (2)
5,352,968 Battery charge state determination 203 1992
5,596,260 Apparatus and method for determining a charge of a battery 164 1994
 
AT&T Bell Laboratories (2)
5,241,275 Method of measuring remaining capacity of a storage cell by comparing impedance plot characteristics 151 1991
5,266,880 Battery monitoring circuit 138 1992
 
BTECH, INC. (2)
5,047,722 Apparatus for measuring internal resistance of wet cell storage batteries having non-removable cell caps 157 1989
5,281,920 On-line battery impedance measurement 160 1992
 
COMMONWEALTH EDISON COMPANY (2)
4,697,134 Apparatus and method for measuring battery condition 181 1986
5,214,385 Apparatus and method for utilizing polarization voltage to determine charge state of a battery 150 1991
 
Cruising Equipment, Inc. (2)
5,895,440 Battery monitor and cycle status indicator 168 1996
5,939,855 Power conversion equipment monitor/controller method and apparatus 128 1997
 
Curtis Instruments, Inc. (2)
4,514,694 Quiescent battery testing method and apparatus 146 1982
5,451,881 Method and means for adjusting battery monitor based on rate of current drawn from the battery 158 1994
 
HITACHI, LTD. (2)
4,913,116 Ignition timing control apparatus for an internal combustion engine 119 1989
2005/0186,696 Gas flowmeter and manufacturing method thereof 2005
 
HTC CORPORATION (2)
5,677,077 Sensor circuit for providing maximum and minimum cell voltages of a battery 143 1996
5,717,937 Circuit for selecting and designating a master battery pack in a computer system 136 1996
 
KABUSHIKI KAISHA TOSHIBA (2)
4,849,700 Device for detecting residual capacity of battery 166 1988
5,300,874 Intelligent power supply system for a portable computer 205 1990
 
Nippondenso Co., Ltd. (2)
5,412,323 Battery condition detecting apparatus and charge control apparatus for automobile 161 1993
5,537,967 Vibration damping control apparatus for vehicle 140 1995
 
SANYO ELECTRIC CO., LTD. (2)
5,432,426 Charging device of a secondary battery for controlling termination of charging in response to the change state of terminal voltage of the secondary battery 143 1993
5,442,274 Rechargeable battery charging method 184 1993
 
Alber Engineering, Inc. (1)
4,707,795 Battery testing and monitoring system 189 1985
 
ANALOG DEVICES, INC. (1)
5,339,018 Integrated circuit monitor for storage battery voltage and temperature 139 1992
 
ASAHI KASEI TOKO POWER DEVICES CORPORATION (1)
5,298,797 Gate charge recovery circuit for gate-driven semiconductor devices 148 1993
 
ASSOCIATED RESEARCH, INC. (1)
4,408,157 Resistance measuring arrangement 195 1981
 
AUTOZONE, INC. (1)
5,701,089 Alternator/starter testing device 153 1995
 
Best Power Technology Corporation (1)
5,295,078 Method and apparatus for determination of battery run-time in uninterruptible power system 169 1992
 
BOATMEN'S BANK NORTH IOWA (1)
5,144,248 Method and apparatus for measuring the voltage and charge of a battery 137 1989
 
BRADENAHL, DAISY (1)
4,947,124 Method for charging a nickel-cadmium accumulator and simultaneously testing its condition 151 1989
 
BRADLEY, CHARLES W. (1)
5,528,148 Battery monitoring and deceleration dependent fuel-saving charging system 167 1994
 
CARAVELLO, ELLEN (1)
5,705,929 Battery capacity monitoring system 166 1995
 
Competition Components International Pty Ltd (1)
5,548,273 Vehicle driving monitor apparatus 157 1995
 
Dell USA, L.P. (1)
5,365,453 System for indicating a low battery condition 144 1993
 
ECOAIR CORP. (1)
5,747,909 Hybrid alternator 148 1996
 
Elcorp Pty. Ltd. (1)
5,717,336 Method and apparatus for determining the charge condition of an electrochemical cell 138 1995
 
ELECTRONIC DEVELOPMENT, INC. (1)
4,968,941 Apparatus for monitoring the state of charge of a battery 155 1988
 
EMERSON ELECTRIC CO. (1)
6,172,483 Method and apparatus for measuring complex impedance of cells and batteries 131 1999
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
4,424,491 Automatic voltage imbalance detector 153 1981
 
FORD GLOBAL TECHNOLOGIES, INC. (1)
5,760,587 Battery measurement method 142 1995
 
FORD MOTOR COMPANY (1)
4,207,611 Apparatus and method for calibrated testing of a vehicle electrical system 197 1978
 
GENERAL ELECTRIC COMPANY (1)
4,316,185 Battery monitor circuit 177 1980
 
GENERAL SIGNAL POWER SYSTEMS, INC. (1)
5,602,462 Uninterruptible power system 251 1995
 
GEORGIA TECH RESEARCH CORPORATION (1)
6,094,033 Battery state of charge detector with rapid charging capability and method 137 1998
 
GSLE SUBCO L.L.C. (1)
5,004,979 Battery tach 139 1990
 
Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence (1)
5,170,124 Method and apparatus for monitoring fuel cell performance 242 1991
 
HEWLETT-PACKARD COMPANY (1)
4,667,279 Transformer coupled pard bucker for DC power supplies 135 1986
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5,485,090 Method and apparatus for differentiating battery types 144 1993
 
HINO MOTORS, LTD. (1)
5,939,861 Control system for on-vehicle battery 161 1998
 
HIOKI DENKI KABUSHIKI KAISHA (1)
5,862,515 Battery tester 132 1997
 
Honeywell Inc. (1)
4,929,931 Battery monitor 187 1988
 
INTERMEC CORPORATION (1)
4,709,202 Battery powered system 385 1986
 
JAPLAR MONARCH COMPANY (1)
4,956,597 Method and apparatus for charging batteries 149 1989
 
JOHNSON CONTROLS TECHNOLOGY COMPANY (1)
4,322,685 Automatic battery analyzer including apparatus for determining presence of single bad cell 170 1980
 
JOHNSON CONTROLS, INC. (1)
4,193,025 Automatic battery analyzer 186 1977
 
KAUFEL GROUP, LTD. (1)
4,931,738 Battery monitoring system of cell groups and display 151 1989
 
KW POWERSOURCE, INC. (1)
4,396,880 Method and apparatus for charging a battery 164 1981
 
LINEAGE POWER CORPORATION (1)
5,214,370 Battery charger with thermal runaway protection 140 1991
 
MAKITA CORPORATION (1)
5,449,996 Battery charger with improved change stopping capability 144 1993
 
Marelli Autronica S.p.A. (1)
4,412,169 Circuit for detecting and indicating faults and operating anomalies in a system for recharging electric accumulators 139 1981
 
MICROCHIP TECHNOLOGY INCORPORATED (1)
5,789,899 Smart battery system with an A/D converter that converts both positive and negative analog input signals 140 1996
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
5,434,495 Cognition device for battery residual capacity 150 1989
 
MITSUMI ELECTRIC CO., LTD. (1)
5,793,359 System for RF communication between a computer and a remote wireless data input device 241 1996
 
MONITOR LABS INCORPORATED (1)
5,338,515 SO.sub.2 sensor 129 1990
 
Motor Appliance Corporation (1)
5,621,298 Power supply with automatic charge measuring capability 145 1994
 
MOTOROLA SOLUTIONS, INC. (1)
5,331,268 Method and apparatus for dynamically charging a battery 147 1993
 
MOTOROLA, INC. (1)
5,032,825 Battery capacity indicator 203 1990
 
NORTHROP GRUMMAN CORPORATION (1)
5,426,416 Automotive current sensor 122 1992
 
NORVIK TRACTION (1)
5,179,335 Battery charger 184 1988
 
OUTBOARD MARINE CORPORATION (1)
4,520,353 State of charge indicator 162 1982
 
PARKER, ROBERT (1)
5,825,174 Temperature responsive battery tester 125 1996
 
PHYSIO-CONTROL, INC. (1)
6,072,299 Smart battery with maintenance and testing functions 170 1999
 
POLAROID CORPORATION (1)
4,363,407 Method and system for testing and sorting batteries 147 1981
 
POWERSMART (1)
5,606,242 Smart battery algorithm for reporting battery parameters to an external device 298 1994
 
POWERWARE CORPORATION (1)
5,457,377 Method of monitoring the internal impedance of an accumulator battery in an uninterruptible power supply, and an uninterruptible power supply 171 1993
 
PURKEY'S FLEET ELECTRIC, INC. (1)
6,150,793 System and method for managing the electrical system of a vehicle 145 1998
 
RICHTER & PARTNERS INC., AS RECEIVER (1)
5,204,611 Charging circuits for rechargeable batteries and cells 216 1991
 
ROBERT BOSCH GMBH (1)
5,160,881 Alternator for a motor vehicle having a ventilator and device for monitoring and a controlling the ventilator 124 1991
 
SAFE FLIGHT INSTRUMENT CORPORATION (1)
5,675,234 Multicell battery monitoring system 136 1996
 
SAFT FINANCE S.AR.L. (1)
5,546,317 System for recognizing and managing electrochemical cells 146 1994
 
SHARP KABUSHIKI KAISHA (1)
5,347,163 Power supply backup device for use in portable electronic apparatus 130 1992
 
SIEMENS VDO AUTOMOTIVE ELECTRONICS CORPORATION (1)
4,659,977 Microcomputer controlled electronic alternator for vehicles 186 1984
 
SNAP-ON INCORPORATED (1)
4,459,548 Alternator testing apparatus 154 1981
 
SNAP-ON TOOLS CORPORATION (1)
4,423,379 Battery testing techniques 169 1981
 
SPX DEVELOPMENT CORPORATION (1)
4,423,378 Automotive battery test apparatus 192 1981
 
SYMBOL TECHNOLOGIES, INC. (1)
5,365,160 Apparatus and method for charging batteries 149 1991
 
The United States of America as represented by the Secretary of the Army (1)
5,302,902 Abnormal battery cell voltage detection circuitry 167 1991
 
TIF Instruments, Inc. (1)
4,719,428 Storage battery condition tester utilizing low load current 156 1985
 
TRANSACTION CONTROL INDUSTRIES, INC., A CORP. OF TEX. (1)
4,390,828 Battery charger circuit 149 1982
 
U.S. Philips Corporation (1)
5,144,218 Device for determining the charge condition of a battery 146 1990
 
Unitrode Corporation (1)
5,652,501 Voltage sensor for detecting cell voltages 174 1994
 
UNIVERSITE PARIS 7 - DENIS DIDEROT (1)
5,650,937 Device and method for measuring the charge state of a nickel-cadmium accumulator 138 1995
 
UNWIRED PLANET, LLC (1)
2001/0001,008 Transmitter/receiver for GMSK and Offset-QAM 6 2000
 
UUSI, LLC (1)
6,009,369 Voltage monitoring glow plug controller 148 1997
 
WHITAKER CORPORATION, THE (1)
5,562,501 Female electrical contact with stop for resilient contact 143 1994
 
Other [Check patent profile for assignment information] (26)
4,679,000 Bidirectional current time integration device 169 1985
4,710,861 Anti-ripple circuit 146 1986
4,743,855 Method of and apparatus for measuring the state of discharge of a battery 171 1986
4,816,768 Electronic battery testing device 178 1988
4,825,170 Electronic battery testing device with automatic voltage scaling 159 1988
4,820,966 Battery monitoring system 179 1988
4,881,038 Electric battery testing device with automatic voltage scaling to determine dynamic conductance 159 1988
4,912,416 Electronic battery testing device with state-of-charge compensation 168 1989
5,087,881 IC engine cylinder output power measurement apparatus by monitoring the output of an alternator driven by the engine 146 1990
5,140,269 Electronic tester for assessing battery/cell capacity 175 1990
5,126,675 Battery capacity monitor 144 1990
5,336,993 Assembly for testing rectifiers and regulators of automotive alternators 137 1992
5,343,380 Method and apparatus for suppressing time-varying signals in batteries undergoing charging or discharging 162 1992
5,315,287 Energy monitoring system for recreational vehicles and marine vessels 136 1993
5,381,096 Method and apparatus for measuring the state-of-charge of a battery system 176 1993
5,519,383 Battery and starter circuit monitoring system 147 1994
5,598,098 Electronic battery tester with very high noise immunity 143 1994
5,488,300 Method and apparatus for monitoring the state of charge of a battery 137 1994
5,550,485 Multifunction alternator testing device 149 1995
5,572,136 Electronic battery testing device 173 1995
5,585,728 Electronic battery tester with automatic compensation for low state-of-charge 147 1995
5,872,443 Electronic method for controlling charged particles to obtain optimum electrokinetic behavior 146 1997
6,002,238 Method and apparatus for measuring complex impedance of cells and batteries 146 1998
6,037,777 Method and apparatus for determining battery properties from complex impedance/admittance 154 1998
6,137,269 Method and apparatus for electronically evaluating the internal temperature of an electrochemical cell or battery 123 1999
6,114,834 Remote charging system for a vehicle 156 1999

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MIDTRONICS, INC. (92)
6,466,025 Alternator tester 95 2000
6,445,158 Vehicle electrical system tester with encoded output 133 2000
6,441,585 Apparatus and method for testing rechargeable energy storage batteries 114 2000
6,566,883 Electronic battery tester 79 2000
6,456,045 Integrated conductance and load test based electronic battery tester 94 2001
6,424,158 Apparatus and method for carrying out diagnostic tests on batteries and for rapidly charging batteries 107 2001
6,544,078 Battery clamp with integrated current sensor 80 2001
6,469,511 Battery clamp with embedded environment sensor 46 2001
6,633,165 In-vehicle battery monitor 60 2001
6,909,287 Energy management system for automotive vehicle 57 2001
7,198,510 Kelvin connector for a battery post 15 2001
6,707,303 Electronic battery tester 48 2001
6,871,151 Electronic battery tester with network communication 53 2002
6,885,195 Method and apparatus for auditing a battery test 41 2002
6,556,019 Electronic battery tester 89 2002
7,015,674 Booster pack with storage capacitor 18 2002
6,906,522 Battery tester with battery replacement output 39 2002
6,906,523 Method and apparatus for testing cells and batteries embedded in series/parallel systems 40 2002
6,788,025 Battery charger with booster pack 52 2002
7,126,341 Automotive vehicle electrical system diagnostic device 45 2002
7,058,525 Battery test module 55 2002
7,012,433 Battery tester upgrade using software key 36 2002
6,850,037 In-vehicle battery monitor 57 2002
6,759,849 Battery tester configured to receive a removable digital module 50 2002
7,039,533 Battery test module 15 2002
6,795,782 Battery test module 56 2002
6,781,382 Electronic battery tester 48 2002
6,888,468 Apparatus and method for protecting a battery from overdischarge 51 2003
6,801,040 Electronic battery tester with battery failure temperature determination 0 2003
6,891,378 Electronic battery tester 39 2003
7,557,586 Electronic battery tester 10 2003
6,967,484 Electronic battery tester with automotive scan tool communication 35 2003
6,933,727 Electronic battery tester cable 34 2003
6,913,483 Cable for electronic battery tester 40 2003
7,723,993 Electronic battery tester configured to predict a load test result based on open circuit voltage, temperature, cranking size rating, and a dynamic parameter 10 2003
7,081,755 Battery tester capable of predicting a discharge voltage/discharge current of a battery 40 2003
7,154,276 Method and apparatus for measuring a parameter of a vehicle electrical system 13 2003
6,914,413 Alternator tester with encoded output 41 2003
6,941,234 Query based electronic battery tester 38 2003
6,919,725 Electronic battery tester/charger with integrated battery cell temperature measurement device 44 2003
7,116,109 Apparatus and method for simulating a battery tester with a fixed resistance load 37 2003
7,208,914 Apparatus and method for predicting the remaining discharge time of a battery 18 2003
7,598,699 Replaceable clamp for electronic battery tester 11 2004
8,198,900 Automotive battery charging system tester 0 2004
7,479,763 Apparatus and method for counteracting self discharge in a storage battery 10 2004
7,119,686 Theft prevention device for automotive vehicle service centers 41 2004
7,501,795 Battery charger with booster pack 10 2004
7,246,015 Alternator tester 16 2004
7,688,074 Energy management system for automotive vehicle 16 2004
7,003,410 Electronic battery tester with relative test output 37 2004
6,998,847 Electronic battery tester with data bus for removable module 35 2004
7,656,162 Electronic battery tester with vehicle type input 10 2004
7,106,070 Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries 34 2004
7,319,304 Shunt connection to a PCB of an energy management system employed in an automotive vehicle 14 2004
7,003,411 Electronic battery tester with network communication 50 2004
7,999,505 In-vehicle battery monitor 6 2004
7,446,536 Scan tool for electronic battery tester 23 2004
7,545,146 Apparatus and method for predicting battery capacity and fitness for service from a battery dynamic parameter and a recovery voltage differential 10 2004
7,774,151 Wireless battery monitor 10 2004
7,598,743 Battery maintenance device having databus connection 11 2005
7,034,541 Query based electronic battery tester 13 2005
7,642,786 Battery tester capable of identifying faulty battery post adapters 10 2005
7,505,856 Battery test module 14 2005
7,598,744 Scan tool for electronic battery tester 11 2005
7,772,850 Wireless battery tester with information encryption means 11 2005
7,710,119 Battery tester that calculates its own reference values 15 2005
7,398,176 Battery testers with secondary functionality 13 2006
7,295,936 Electronic battery tester with relative test output 12 2006
7,363,175 Query based electronic battery tester 10 2006
7,777,612 Theft prevention device for automotive vehicle service centers 11 2006
7,595,643 Apparatus and method for simulating a battery tester with a fixed resistance load 10 2006
7,705,602 Automotive vehicle electrical system diagnostic device 19 2006
7,425,833 Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries 11 2006
7,642,787 Automotive vehicle electrical system diagnostic device 13 2006
7,619,417 Battery monitoring system 13 2006
8,674,711 Method and apparatus for measuring a parameter of a vehicle electrical system 0 2006
7,706,991 Alternator tester 10 2007
7,977,914 Battery maintenance tool with probe light 0 2007
7,808,375 Battery run down indicator 10 2008
8,237,448 Battery testers with secondary functionality 0 2008
8,306,690 Battery tester for electric vehicle 0 2008
8,513,949 Electronic battery tester or charger with databus connection 0 2008
8,164,343 Method and apparatus for measuring a parameter of a vehicle electrical system 0 2008
7,728,597 Electronic battery tester with databus 10 2008
8,203,345 Storage battery and battery tester 1 2008
8,442,877 Simplification of inventory management 0 2009
8,436,619 Integrated tag reader and environment sensor 0 2009
8,344,685 System for automatically gathering battery information 0 2009
7,940,052 Electronic battery test based upon battery requirements 0 2010
8,493,022 Automotive vehicle electrical system diagnostic device 0 2010
7,924,015 Automotive vehicle battery test system 10 2010
8,674,654 In-vehicle battery monitor 0 2011
 
INTERSTATE BATTERY SYSTEM OF AMERICA, INC. (3)
6,930,485 Electronic battery tester with battery failure temperature determination 38 2003
7,498,767 Centralized data storage of condition of a storage battery at its point of sale 13 2006
7,791,348 Battery tester with promotion feature to promote use of the battery tester by providing the user with codes having redeemable value 10 2007
 
MEDTRONIC, INC. (2)
8,314,594 Capacity fade adjusted charge level or recharge interval of a rechargeable power source of an implantable medical device, system and method 0 2008
8,193,766 Time remaining to charge an implantable medical device, charger indicator, system and method therefore 2 2008
 
MILWAUKEE ELECTRIC TOOL CORPORATION (2)
6,924,620 Battery, battery charger, electrical system and method of charging a battery 21 2002
7,323,846 Battery having an extended terminal 0 2005
 
ASSOCIATED EQUIPMENT CORPORATION (1)
7,504,830 Dual load tester 0 2006
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
6,441,586 State of charge prediction method and apparatus for a battery 51 2001
 
Interstate Battery System of America (1)
7,940,053 Battery tester with promotion feature 5 2010
 
MIDRONICS, INC. (1)
7,408,358 Electronic battery tester having a user interface to configure a printer 11 2003
 
SNAP-ON INCORPORATED (1)
7,209,850 Active tester for vehicle circuit evaluation 14 2004
 
Other [Check patent profile for assignment information] (6)
6,417,669 Suppressing interference in AC measurements of cells, batteries and other electrical elements 98 2001
6,495,990 Method and apparatus for evaluating stored charge in an electrochemical cell or battery 98 2001
6,466,026 Programmable current exciter for measuring AC immittance of cells and batteries 94 2001
6,737,831 Method and apparatus using a circuit model to evaluate cell/battery parameters 58 2002
6,621,272 Programmable current exciter for measuring AC immittance of cells and batteries 45 2002
6,806,716 Electronic battery tester 49 2004