Inventor · disambiguated record
David P. Wilkinson
Also filed as: WILKINSON DAVID · WILKINSON DAVID P · WILKINSON DAVID PENTREATH
68 granted patents·19 pending applications·3,716 citations·filing 1990–2021
99Inventor score
Files withBALLARD POWER SYSTEMS54JOHNSON MATTHEY PLC4UNIV BRITISH COLUMBIA3BALLARD POWER SYSTEM INC2OCTOPUS TECH INC2
Top patents by PatentIndex Score
87 records- 0197US5300370ALaminated fluid flow field assembly for electrochemical fuel cellsBALLARD POWER SYSTEMS·Filed 1993·Granted Apr 5, 1994·264 cites·17 claims
- 0297US5252410ALightweight fuel cell membrane electrode assembly with integral reactant flow passagesBALLARD POWER SYSTEMS·Filed 1991·Granted Oct 12, 1993·225 cites·31 claims
- 0396US5366818ASolid polymer fuel cell systems incorporating water removal at the anodeBALLARD POWER SYSTEMS·Filed 1992·Granted Nov 22, 1994·214 cites·54 claims
- 0495US6586128B1Differential pressure fluid flow fields for fuel cellsBALLARD POWER SYSTEMS·Filed 2000·Granted Jul 1, 2003·71 cites·27 claims
- 0595US5482680AElectrochemical fuel cell assembly with integral selective oxidizerBALLARD POWER SYSTEMS·Filed 1993·Granted Jan 9, 1996·110 cites·18 claims
- 0695US5130211AElectrolyte solution sequestering agents for electrochemical cells having carbonaceous electrodesUNITED KINGDOM GOVERNMENT·Filed 1990·Granted Jul 14, 1992·127 cites·27 claims
- 0794US6936370B1Solid polymer fuel cell with improved voltage reversal toleranceJOHNSON MATTHEY PLC·Filed 2000·Granted Aug 30, 2005·103 cites·41 claims
- 0894US5976726AElectrochemical cell with fluid distribution layer having integral sealing capabilityBALLARD POWER SYSTEMS·Filed 1997·Granted Nov 2, 1999·83 cites·30 claims
- 0994US5527363AMethod of fabricating an embossed fluid flow field plateBALLARD POWER SYSTEMS·Filed 1993·Granted Jun 18, 1996·130 cites·8 claims
- 1093US6756149B2Electrochemical fuel cell with non-uniform fluid flow designBALLARD POWER SYSTEMS·Filed 2001·Granted Jun 29, 2004·53 cites·15 claims
- 1193US6461751B1Method and apparatus for operating a fuel cellBALLARD POWER SYSTEMS·Filed 1999·Granted Oct 8, 2002·166 cites·29 claims
- 1293US5773160AElectrochemical fuel cell stack with concurrent flow of coolant and oxidant streams and countercurrent flow of fuel and oxidant streamsBALLARD POWER SYSTEMS·Filed 1996·Granted Jun 30, 1998·143 cites·18 claims
- 1393US5672439AMethod and apparatus for reducing reactant crossover in an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1995·Granted Sep 30, 1997·106 cites·24 claims
- 1492US5874182AMethod and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1997·Granted Feb 23, 1999·87 cites·19 claims
- 1591US5470671AElectrochemical fuel cell employing ambient air as the oxidant and coolantBALLARD POWER SYSTEMS·Filed 1993·Granted Nov 28, 1995·120 cites·30 claims
- 1690US6638650B1Method and apparatus for detecting transfer leaks in fuel cells and fuel cell stacksBALLARD POWER SYSTEMS·Filed 2000·Granted Oct 28, 2003·59 cites·35 claims
- 1789US6517962B1Fuel cell anode structures for voltage reversal toleranceBALLARD POWER SYSTEMS·Filed 2000·Granted Feb 11, 2003·32 cites·16 claims
- 1889US5521018AEmbossed fluid flow field plate for electrochemical fuel cellsBALLARD POWER SYSTEMS·Filed 1995·Granted May 28, 1996·91 cites·34 claims
- 1988US5432021AMethod and apparatus for oxidizing carbon monoxide in the reactant stream of an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1993·Granted Jul 11, 1995·54 cites·10 claims
- 2087US6627338B2Integrated fuel cell and pressure swing adsorption systemBALLARD POWER SYSTEMS·Filed 2000·Granted Sep 30, 2003·46 cites·37 claims
- 2187US6475651B1Method and apparatus for detecting transfer leaks in fuel cellsBALLARD POWER SYSTEMS·Filed 2000·Granted Nov 5, 2002·32 cites·18 claims
- 2287US6472090B1Method and apparatus for operating an electrochemical fuel cell with periodic reactant starvationBALLARD POWER SYSTEMS·Filed 1999·Granted Oct 29, 2002·91 cites·31 claims
- 2387US5863673APorous electrode substrate for an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1996·Granted Jan 26, 1999·77 cites·40 claims
- 2487US5441819AMethod and apparatus for removing water from electrochemical fuel cells by controlling the temperature and pressure of the reactant streamsBALLARD POWER SYSTEMS·Filed 1993·Granted Aug 15, 1995·73 cites·32 claims
- 2586US6541145B2Flow fields for supporting fluid diffusion layers in fuel cellsBALLARD POWER SYSTEMS·Filed 2000·Granted Apr 1, 2003·29 cites·15 claims
- 2686US6096448AMethod 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
- 2786US5840438AElectrochemical fuel cell with an electrode substrate having an in-plane nonuniform structure for control of reactant and product transportBALLARD POWER SYSTEMS·Filed 1995·Granted Nov 24, 1998·102 cites·35 claims
- 2886US5260143AMethod and apparatus for removing water from electrochemical fuel cellsBALLARD POWER SYSTEMS·Filed 1991·Granted Nov 9, 1993·72 cites·28 claims
- 2985US6329089B1Method and apparatus for increasing the temperature of a fuel cellBALLARD POWER SYSTEMS·Filed 1999·Granted Dec 11, 2001·66 cites·20 claims
- 3083US6974647B2Fuel cell fluid distribution layer having integral sealing capabilityBALLARD POWER SYSTEMS·Filed 2002·Granted Dec 13, 2005·15 cites·23 claims
- 3183US6060190AElectrochemical fuel cell membrane electrode assembly with porous electrode substrateBALLARD POWER SYSTEMS·Filed 1998·Granted May 9, 2000·62 cites·34 claims
- 3282US5795669AElectrodeJOHNSON MATTHEY PLC·Filed 1996·Granted Aug 18, 1998·73 cites·14 claims
- 3381US9951753B1Systems and methods for offshore electrical energy generationUS NAVY·Filed 2016·Granted Apr 24, 2018·6 cites·9 claims
- 3479US6682839B2Method and apparatus for controlling the temperature within an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 2001·Granted Jan 27, 2004·20 cites·45 claims
- 3579US6074773AImpregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 1998·Granted Jun 13, 2000·50 cites·21 claims
- 3679US5702839AManufacture of electrodesJOHNSON MATTHEY PLC·Filed 1996·Granted Dec 30, 1997·53 cites·21 claims
- 3778US10615412B2Manganese oxide composition and method for preparing manganese oxide compositionUNIV BRITISH COLUMBIA·Filed 2018·Granted Apr 7, 2020·1 cites·15 claims
- 3877US6210820B1Method for operating fuel cells on impure fuelsBALLARD POWER SYSTEMS·Filed 1998·Granted Apr 3, 2001·50 cites·18 claims
- 3977US5871860AManufacture of electrodesJOHNSON MATTHEY PLC·Filed 1997·Granted Feb 16, 1999·49 cites·12 claims
- 4076US6350538B1Fuel cell with fluid distribution layer having intergral sealing capabilityBALLARD POWER SYSTEMS·Filed 1999·Granted Feb 26, 2002·39 cites·28 claims
- 4174US6764780B2Method and apparatus for increasing the temperature of a fuel cellBALLARD POWER SYSTEMS·Filed 2001·Granted Jul 20, 2004·10 cites·16 claims
- 4272US6673480B1Sensor cell for an electrochemical fuel cell stackBALLARD POWER SYSTEMS·Filed 1999·Granted Jan 6, 2004·46 cites·39 claims
- 4372US6187467B1Ionomer impregnation of electrode substrates for improved fuel cell performanceBALLARD POWER SYSTEMS·Filed 1998·Granted Feb 13, 2001·40 cites·23 claims
- 4472US5763765AMethod and apparatus for detecting and locating perforations in membranes employed in electrochemical cellsBALLARD POWER SYSTEMS·Filed 1996·Granted Jun 9, 1998·45 cites·20 claims
- 4571US6667127B2Fluid diffusion layers for fuel cellsBALLARD POWER SYSTEMS·Filed 2001·Granted Dec 23, 2003·12 cites·42 claims
- 4668US7014935B2Solid polymer electrolyte fuel cell stack having specific corrosion resistant cellsBALLARD POWER SYSTEMS·Filed 2003·Granted Mar 21, 2006·7 cites·19 claims
- 4766US6500572B2Method for operating fuel cells on impure fuelsBALLARD POWER SYSTEMS·Filed 2001·Granted Dec 31, 2002·6 cites·17 claims
- 4865US6492043B1Method and apparatus for detecting a leak within a fuel cellBALLARD POWER SYSTEMS·Filed 1998·Granted Dec 10, 2002·41 cites·38 claims
- 4965US6413664B1Fuel cell separator plate with discrete fluid distribution featuresBALLARD POWER SYSTEMS·Filed 1999·Granted Jul 2, 2002·36 cites·28 claims
- 5062US6841285B2Impregnation of ion-exchange membranes to improve electrochemical fuel cell performanceBALLARD POWER SYSTEMS·Filed 2002·Granted Jan 11, 2005·6 cites·19 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →