Inventor · disambiguated record
Norman Schaefer
Also filed as: SCHAEFER NORMAN
5 granted patents·148 citations·filing 1996–2002
82Inventor score
Top patents by PatentIndex Score
5 records- 0188US6179096B1Exhaust brake variable bypass circuitDIESEL ENGINE RETARDERS INC·Filed 1997·Granted Jan 30, 2001·66 cites·23 claims
- 0287US6109027AExhaust restriction deviceDIESEL ENGINE RETARDERS INC·Filed 1999·Granted Aug 29, 2000·59 cites·17 claims
- 0361US7159444B2Combustible gas detection systems and method thereofPROTON ENERGY SYS INC·Filed 2002·Granted Jan 9, 2007·5 cites·9 claims
- 0445US5845748ALow restriction exhaust brakeDIESEL ENGINE RETARDERS INC·Filed 1996·Granted Dec 8, 1998·13 cites·19 claims
- 0536US5947235ASystem and method of exhaust brake controlDIESEL ENGINE RETARDERS INC·Filed 1996·Granted Sep 7, 1999·5 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →