Assignee
DURACELL INC
US218 patents
Top patents by PatentIndex Score
US5606242AFeb 25, 1997
Smart battery algorithm for reporting battery parameters to an external device
DURACELL INC788 citations99
US5710501AJan 20, 1998
Battery pack having a processor controlled battery operating system
DURACELL INC96 citations98
US5652502AJul 29, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC185 citations98
US5646508AJul 8, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC105 citations98
US5633573AMay 27, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC251 citations98
US6521378B2Feb 18, 2003
Electrode having multi-modal distribution of zinc-based particles
DURACELL INC106 citations97
US6284410B1Sep 4, 2001
Zinc electrode particle form
DURACELL INC140 citations97
US6051957AApr 18, 2000
Battery pack having a state of charge indicator
DURACELL INC89 citations97
US5958088ASep 28, 1999
Prismatic cell construction
DURACELL INC105 citations97
US5879832AMar 9, 1999
Current interrupter for electrochemical cells
DURACELL INC90 citations97
US5691621ANov 25, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC116 citations97
US5607789AMar 4, 1997
Light transparent multilayer moisture barrier for electrochemical cell tester and cell employing same
DURACELL INC195 citations97
US5277890AJan 11, 1994
Process for producing manganese dioxide
DURACELL INC103 citations97
US5948569ASep 7, 1999
Lithium ion electrochemical cell
DURACELL INC98 citations96
US5681666AOct 28, 1997
Light transparent multilayer moisture barrier for electrochemical celltester and cell employing same
DURACELL INC203 citations96
US5679017AOct 21, 1997
Universal battery charger
DURACELL INC64 citations96
US5596278AJan 21, 1997
Condition tester for a battery
DURACELL INC61 citations96
US5482796AJan 9, 1996
Electrochemical cell comprising gamma MnO2 cathode having filamentary protrusions
DURACELL INC46 citations96
US5348726ASep 20, 1994
Process for producing manganese dioxide
DURACELL INC81 citations96
US5339024AAug 16, 1994
Battery with electrochemical tester
DURACELL INC101 citations96
US6207322B1Mar 27, 2001
Alkaline cell with semisolid cathode
DURACELL INC97 citations95
US5691073ANov 25, 1997
Current interrupter for electrochemical cells
DURACELL INC89 citations95
US5396177AMar 7, 1995
Battery with electrochemical tester
DURACELL INC79 citations95
US5355089AOct 11, 1994
Moisture barrier for battery with electrochemical tester
DURACELL INC104 citations95
US5212021AMay 18, 1993
Energy pack and individual battery cell cartridge
DURACELL INC86 citations95
US4891281AJan 2, 1990
Electrochemical cells having low vapor pressure complexed SO2 electrolytes
DURACELL INC59 citations95
US4777100AOct 11, 1988
Cell corrosion reduction
DURACELL INC107 citations95
US4640874AFeb 3, 1987
Metal/air cell
DURACELL INC53 citations95
US6037071AMar 14, 2000
Current interrupter for electrochemical cells
DURACELL INC54 citations94
US5998051ADec 7, 1999
Current interrupter for electrochemical cells
DURACELL INC51 citations94
US5391365AFeb 21, 1995
Process for producing manganese dioxide
DURACELL INC82 citations94
US5176968AJan 5, 1993
Electrochemical cell
DURACELL INC72 citations94
US4896770AJan 30, 1990
Battery display package
DURACELL INC53 citations94
US4670363AJun 2, 1987
Non-aqueous electrochemical cell
DURACELL INC59 citations94
US5698176ADec 16, 1997
Manganese dioxide for lithium batteries
DURACELL INC68 citations93
US5557208ASep 17, 1996
Battery tester with stacked thermochromic elements
DURACELL INC21 citations93
US5491420AFeb 13, 1996
Battery tester with stacked thermochromic elements
DURACELL INC27 citations93
US5250905AOct 5, 1993
Battery with electrochemical tester
DURACELL INC97 citations93
US4958731ASep 25, 1990
Battery package
DURACELL INC87 citations93
US4723656AFeb 9, 1988
Battery package with battery condition indicator means
DURACELL INC286 citations93
US4622277ANov 11, 1986
Electrochemical cells
DURACELL INC56 citations93
US4579791AApr 1, 1986
Cell anode
DURACELL INC27 citations93
US4552821ANov 12, 1985
Sealed nickel-zinc battery
DURACELL INC66 citations93
US4526846AJul 2, 1985
Corrosion prevention additive
DURACELL INC85 citations93
US4455358AJun 19, 1984
Electrochemical cells having a gelled anode-electrolyte mixture
DURACELL INC55 citations93
US6143439ANov 7, 2000
End cap assembly for an electrochemical cell
DURACELL INC30 citations92
US6045950AApr 4, 2000
Solvent for electrolytic solutions
DURACELL INC29 citations92
US6042967AMar 28, 2000
End cap seal assembly for an electrochemical cell
DURACELL INC26 citations92
US6001504ADec 14, 1999
Prismatic battery housing
DURACELL INC48 citations92
US5783328AJul 21, 1998
Method of treating lithium manganese oxide spinel
DURACELL INC49 citations92
Showing the top 50 of 218 patents by PatentIndex Score.