Inventor · disambiguated record
David S. Watkins
Also filed as: WATKINS DAVID S
16 granted patents·2,026 citations·filing 1989–2001
96Inventor score
Files withBALLARD POWER SYSTEMS9BALLARD GENERATION SYSTEMS INC2UNITED KINGDOM GOVERNMENT2BALLARD POWER SYSTEM INC1CA MINISTER NAT DEFENCE1
Top patents by PatentIndex Score
16 records- 0197US5200278AIntegrated fuel cell power generation systemBALLARD POWER SYSTEMS·Filed 1991·Granted Apr 6, 1993·274 cites·20 claims
- 0297US4988583ANovel fuel cell fluid flow field plateCANADA MINISTER DEFENCE·Filed 1989·Granted Jan 29, 1991·226 cites·36 claims
- 0396US5366818ASolid polymer fuel cell systems incorporating water removal at the anodeBALLARD POWER SYSTEMS·Filed 1992·Granted Nov 22, 1994·214 cites·54 claims
- 0496US5360679AHydrocarbon fueled solid polymer fuel cell electric power generation systemBALLARD POWER SYSTEMS·Filed 1993·Granted Nov 1, 1994·304 cites·13 claims
- 0596US5108849AFuel cell fluid flow field plateUNITED KINGDOM GOVERNMENT·Filed 1990·Granted Apr 28, 1992·221 cites·36 claims
- 0692US5284718AFuel cell membrane electrode and seal assemblyBALLARD POWER SYSTEMS·Filed 1991·Granted Feb 8, 1994·131 cites·16 claims
- 0791US5518705AMethod and apparatus for the two-stage selective oxidation of carbon monoxide in a hydrogen-containing gas mixtureBALLARD POWER SYSTEMS·Filed 1994·Granted May 21, 1996·80 cites·2 claims
- 0891US5209906AModular isothermal reactorUNITED KINGDOM GOVERNMENT·Filed 1991·Granted May 11, 1993·93 cites·21 claims
- 0990US5484577ACatalytic hydrocarbon reformer with enhanced internal heat transfer mechanismBALLARD POWER SYSTEM INC·Filed 1994·Granted Jan 16, 1996·99 cites·4 claims
- 1087US6316134B1Fuel cell electric power generation systemBALLARD GENERATION SYSTEMS INC·Filed 1999·Granted Nov 13, 2001·102 cites·46 claims
- 1187US5441819AMethod 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
- 1286US5260143AMethod and apparatus for removing water from electrochemical fuel cellsBALLARD POWER SYSTEMS·Filed 1991·Granted Nov 9, 1993·72 cites·28 claims
- 1384US5316747AMethod and apparatus for the selective oxidation of carbon monoxide in a hydrogen-containing gas mixtureBALLARD POWER SYSTEMS·Filed 1992·Granted May 31, 1994·51 cites·8 claims
- 1479US5456889AApparatus for the selective oxidation of carbon monoxide in a hydrogen-containing gas mixtureCA MINISTER NAT DEFENCE·Filed 1994·Granted Oct 10, 1995·41 cites·24 claims
- 1576US6645652B2Fuel cell electric power generation systemBALLARD GENERATION SYSTEMS INC·Filed 2001·Granted Nov 11, 2003·19 cites·7 claims
- 1669US5750076AApparatus for the two-stage selective oxidation of carbon monoxide in a hydrogen-containing gas mixtureBALLARD POWER SYSTEMS·Filed 1995·Granted May 12, 1998·26 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →