Inventor · disambiguated record
Joy Roberts
Also filed as: ROBERTS JOY · ROBERTS JOY A
16 granted patents·8 pending applications·477 citations·filing 1997–2015
94Inventor score
Top patents by PatentIndex Score
24 records- 0192US6479177B1Method for improving the cold starting capability of an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1999·Granted Nov 12, 2002·111 cites·14 claims
- 0287US6472090B1Method and apparatus for operating an electrochemical fuel cell with periodic reactant starvationBALLARD POWER SYSTEMS·Filed 1999·Granted Oct 29, 2002·91 cites·31 claims
- 0386US6096448AMethod and apparatus for operating an electrochemical fuel cell with periodic fuel starvation at the anodeBALLARD POWER SYSTEMS·Filed 1997·Granted Aug 1, 2000·95 cites·39 claims
- 0485US6329089B1Method and apparatus for increasing the temperature of a fuel cellBALLARD POWER SYSTEMS·Filed 1999·Granted Dec 11, 2001·66 cites·20 claims
- 0579US6682839B2Method and apparatus for controlling the temperature within an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 2001·Granted Jan 27, 2004·20 cites·45 claims
- 0679US6074773AImpregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1998·Granted Jun 13, 2000·50 cites·21 claims
- 0774US8597806B2Method for operating fuel cells with passive reactant supplyROBERTS JOY·Filed 2007·Granted Dec 3, 2013·3 cites·31 claims
- 0874US6764780B2Method and apparatus for increasing the temperature of a fuel cellBALLARD POWER SYSTEMS·Filed 2001·Granted Jul 20, 2004·10 cites·16 claims
- 0966US8835024B2Method for operating fuel cells with passive reactant supplySOCIéTé BIC·Filed 2013·Granted Sep 16, 2014·0 cites·20 claims
- 1066US7482085B2Apparatus for improving the cold starting capability of an electrochemical fuel cellBDF IP HOLDINGS LTD·Filed 2004·Granted Jan 27, 2009·8 cites·7 claims
- 1162US6841285B2Impregnation of ion-exchange membranes to improve electrochemical fuel cell performanceBALLARD POWER SYSTEMS·Filed 2002·Granted Jan 11, 2005·6 cites·19 claims
- 1253US2011070511A1Cooling subsystem for an electrochemical fuel cell systemDAIMLER AG·Filed 2010·Application pending·0 cites
- 1352US9564642B2Durable fuel cell with platinum cobalt alloy cathode catalyst and selectively conducting anodeDAIMLER AG·Filed 2013·Granted Feb 7, 2017·0 cites·12 claims
- 1447US2004234845A1Method and apparatus for increasing the temperature of a fuel cellFiled 2004·Application pending·0 cites
- 1547US2014030625A1Voltage reversal tolerant fuel cell with selectively conducting anodeFORD MOTOR CO·Filed 2013·Application pending·0 cites
- 1646US2005175875A1Cooling subsystem for an electrochemical fuel cell systemFiled 2004·Application pending·0 cites
- 1745US2003077487A1Methods for improving the cold starting capability of an electrochemical fuel cellFiled 2002·Application pending·0 cites
- 1844US10069148B2Fuel cell with selectively conducting anodeDAIMLER AG·Filed 2015·Granted Sep 4, 2018·0 cites·16 claims
- 1944US6306536B1Method of reducing fuel cell performance degradation of an electrode comprising porous componentsBALLARD POWER SYSTEMS·Filed 1999·Granted Oct 23, 2001·13 cites·48 claims
- 2042US2001055707A1Apparatus for improving the cold starting capability of an electrochemical fuel cellFiled 2001·Application pending·0 cites
- 2138US8580448B2Fuel cell with selectively conducting anode componentHAAS HERWIG·Filed 2011·Granted Nov 12, 2013·0 cites·20 claims
- 2238US2013236807A1Durable fuel cell with platinum cobalt alloy cathode catalyst and selectively conducting anodeHAAS HERWIG·Filed 2012·Application pending·0 cites
- 2337US2013017471A1Fuel cell with selectively conducting anode componentFORD MOTOR CO·Filed 2010·Application pending·0 cites
- 2436US6610432B1Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1999·Granted Aug 26, 2003·4 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →