Inventor · disambiguated record
Robert C. Stempel
Also filed as: STEMPEL ROBERT C
7 granted patents·1 pending application·254 citations·filing 1997–2003
89Inventor score
Top patents by PatentIndex Score
8 records- 0192US7226675B2Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a fuel cell and a high power nickel metal hydride battery packOVONIC BATTERY CO·Filed 2002·Granted Jun 5, 2007·39 cites·61 claims
- 0291US6565836B2Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a hydrogen powered internal combustion engine and a high power Ni-MH battery packOVONIC BATTERY CO·Filed 2001·Granted May 20, 2003·40 cites·41 claims
- 0391US6557655B2Hybrid electric vehicleOVONIC BATTERY CO·Filed 2001·Granted May 6, 2003·38 cites·15 claims
- 0489US6330925B1Hybrid electric vehicle incorporating an integrated propulsion systemOVONIC BATTERY CO·Filed 1997·Granted Dec 18, 2001·80 cites·15 claims
- 0585US6837321B2Hybrid electric vehicle incorporating an integrated propulsion systemOVONIC BATTERY CO·Filed 2003·Granted Jan 4, 2005·21 cites·40 claims
- 0682US6759034B2Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a hydrogen powered internal combustion engine and a high power Ni-MH battery packOVONIC BATTERY CO·Filed 2002·Granted Jul 6, 2004·18 cites·41 claims
- 0755US6820706B2Method and system for hydrogen powered internal combustion engineENERGY CONVERSION DEVICES INC·Filed 2002·Granted Nov 23, 2004·18 cites·17 claims
- 0834US2003207156A1Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a fuel cell and a high power nickel metal hydride battery packFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →