Assignee
DURACELL INC
US·218 granted patents·8,959 citations·filing 1976–2002
Top patents by PatentIndex Score
218 records- 0199US5606242ASmart battery algorithm for reporting battery parameters to an external deviceDURACELL INC·Filed 1994·Granted Feb 25, 1997·788 cites·31 claims
- 0297US5633573ABattery pack having a processor controlled battery operating systemDURACELL INC·Filed 1994·Granted May 27, 1997·251 cites·48 claims
- 0397US5348726AProcess for producing manganese dioxideDURACELL INC·Filed 1993·Granted Sep 20, 1994·81 cites·11 claims
- 0497US5277890AProcess for producing manganese dioxideDURACELL INC·Filed 1992·Granted Jan 11, 1994·103 cites·17 claims
- 0595US5681666ALight transparent multilayer moisture barrier for electrochemical celltester and cell employing sameDURACELL INC·Filed 1996·Granted Oct 28, 1997·203 cites·19 claims
- 0695US5652502ABattery pack having a processor controlled battery operating systemDURACELL INC·Filed 1995·Granted Jul 29, 1997·185 cites·32 claims
- 0795US5607789ALight transparent multilayer moisture barrier for electrochemical cell tester and cell employing sameDURACELL INC·Filed 1995·Granted Mar 4, 1997·195 cites·18 claims
- 0894US6284410B1Zinc electrode particle formDURACELL INC·Filed 1997·Granted Sep 4, 2001·140 cites·27 claims
- 0994US4777100ACell corrosion reductionDURACELL INC·Filed 1987·Granted Oct 11, 1988·107 cites·13 claims
- 1093US6521378B2Electrode having multi-modal distribution of zinc-based particlesDURACELL INC·Filed 1998·Granted Feb 18, 2003·106 cites·13 claims
- 1193US5339024ABattery with electrochemical testerDURACELL INC·Filed 1992·Granted Aug 16, 1994·101 cites·17 claims
- 1293US4723656ABattery package with battery condition indicator meansDURACELL INC·Filed 1987·Granted Feb 9, 1988·286 cites·14 claims
- 1392US5482796AElectrochemical cell comprising gamma MnO2 cathode having filamentary protrusionsDURACELL INC·Filed 1994·Granted Jan 9, 1996·46 cites·15 claims
- 1492US4526846ACorrosion prevention additiveDURACELL INC·Filed 1982·Granted Jul 2, 1985·85 cites·13 claims
- 1591US5391365AProcess for producing manganese dioxideDURACELL INC·Filed 1993·Granted Feb 21, 1995·82 cites·24 claims
- 1691US5250905ABattery with electrochemical testerDURACELL INC·Filed 1991·Granted Oct 5, 1993·97 cites·18 claims
- 1790US5958088APrismatic cell constructionDURACELL INC·Filed 1998·Granted Sep 28, 1999·105 cites·25 claims
- 1890US5948569ALithium ion electrochemical cellDURACELL INC·Filed 1997·Granted Sep 7, 1999·98 cites·43 claims
- 1990US5396177ABattery with electrochemical testerDURACELL INC·Filed 1992·Granted Mar 7, 1995·79 cites·22 claims
- 2090US5355089AMoisture barrier for battery with electrochemical testerDURACELL INC·Filed 1992·Granted Oct 11, 1994·104 cites·25 claims
- 2190US5283139AAlkaline cellDURACELL INC·Filed 1993·Granted Feb 1, 1994·96 cites·15 claims
- 2290US5080985AHigh pressure seal for alkaline cellsDURACELL INC·Filed 1989·Granted Jan 14, 1992·81 cites·42 claims
- 2390US4958731ABattery packageDURACELL INC·Filed 1989·Granted Sep 25, 1990·87 cites·14 claims
- 2490US4552821ASealed nickel-zinc batteryDURACELL INC·Filed 1984·Granted Nov 12, 1985·66 cites·11 claims
- 2589USD402955SBattery caseDURACELL INC·Filed 1998·Granted Dec 22, 1998·54 cites·1 claims
- 2689US5691621ABattery pack having a processor controlled battery operating systemDURACELL INC·Filed 1995·Granted Nov 25, 1997·116 cites·30 claims
- 2789US5679017AUniversal battery chargerDURACELL INC·Filed 1995·Granted Oct 21, 1997·64 cites·1 claims
- 2889US5646508ABattery pack having a processor controlled battery operating systemDURACELL INC·Filed 1995·Granted Jul 8, 1997·105 cites·18 claims
- 2989USD296478SFlashlightDURACELL INC·Filed 1985·Granted Jun 28, 1988·31 cites·1 claims
- 3089USD282821SDisplay packageDURACELL INC·Filed 1983·Granted Mar 4, 1986·30 cites·1 claims
- 3189US4455358AElectrochemical cells having a gelled anode-electrolyte mixtureDURACELL INC·Filed 1979·Granted Jun 19, 1984·55 cites·20 claims
- 3288US5710501ABattery pack having a processor controlled battery operating systemDURACELL INC·Filed 1995·Granted Jan 20, 1998·96 cites·11 claims
- 3387US6207322B1Alkaline cell with semisolid cathodeDURACELL INC·Filed 1998·Granted Mar 27, 2001·97 cites·62 claims
- 3487US6051957ABattery pack having a state of charge indicatorDURACELL INC·Filed 1998·Granted Apr 18, 2000·89 cites·20 claims
- 3587US4891281AElectrochemical cells having low vapor pressure complexed SO2 electrolytesDURACELL INC·Filed 1986·Granted Jan 2, 1990·59 cites·12 claims
- 3687US4670363ANon-aqueous electrochemical cellDURACELL INC·Filed 1986·Granted Jun 2, 1987·59 cites·20 claims
- 3787US4579791ACell anodeDURACELL INC·Filed 1984·Granted Apr 1, 1986·27 cites·29 claims
- 3887US4547438ABattery assemblyDURACELL INC·Filed 1984·Granted Oct 15, 1985·51 cites·16 claims
- 3986US5879832ACurrent interrupter for electrochemical cellsDURACELL INC·Filed 1997·Granted Mar 9, 1999·90 cites·28 claims
- 4086US5691073ACurrent interrupter for electrochemical cellsDURACELL INC·Filed 1996·Granted Nov 25, 1997·89 cites·30 claims
- 4186US4640874AMetal/air cellDURACELL INC·Filed 1985·Granted Feb 3, 1987·53 cites·14 claims
- 4286USD284106SHand lanternDURACELL INC·Filed 1984·Granted Jun 3, 1986·23 cites·1 claims
- 4386US4484691APressure release deviceDURACELL INC·Filed 1979·Granted Nov 27, 1984·55 cites·1 claims
- 4485US5212021AEnergy pack and individual battery cell cartridgeDURACELL INC·Filed 1992·Granted May 18, 1993·86 cites·29 claims
- 4585USD285356SFlashlightDURACELL INC·Filed 1983·Granted Aug 26, 1986·24 cites·1 claims
- 4685US4537841AMetal-supported seals for galvanic cellsDURACELL INC·Filed 1983·Granted Aug 27, 1985·36 cites·22 claims
- 4785US4499525AConstant illumination flashlightDURACELL INC·Filed 1981·Granted Feb 12, 1985·47 cites·2 claims
- 4884USD296477SFlashlightDURACELL INC·Filed 1985·Granted Jun 28, 1988·23 cites·1 claims
- 4984US4622277AElectrochemical cellsDURACELL INC·Filed 1985·Granted Nov 11, 1986·56 cites·15 claims
- 5084US4608323ACell jacketDURACELL INC·Filed 1985·Granted Aug 26, 1986·64 cites·26 claims
Showing the top 50 of 218 patent records by PatentIndex Score.
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