Inventor · disambiguated record
Karl H. Hellman
Also filed as: HELLMAN KARL H · HELLMAN KARL HARRY
8 granted patents·785 citations·filing 1994–2003
91Inventor score
Top patents by PatentIndex Score
8 records- 0198US5579640AAccumulator engineUS ARMY·Filed 1995·Granted Dec 3, 1996·164 cites·8 claims
- 0296US5495912AHybrid powertrain vehicleUS ARMY·Filed 1994·Granted Mar 5, 1996·302 cites·16 claims
- 0392US6810838B1Individual cylinder coolant control system and methodFiled 2003·Granted Nov 2, 2004·54 cites·20 claims
- 0492US6386154B1Pumped EGR systemUS ENVIRONMENT·Filed 2000·Granted May 14, 2002·48 cites·10 claims
- 0592US5549087ACombined cycle engineUS ARMY·Filed 1995·Granted Aug 27, 1996·49 cites·16 claims
- 0690US5609131AMulti-stage combustion engineUS ARMY·Filed 1995·Granted Mar 11, 1997·56 cites·13 claims
- 0779US5505527AAnti-lock regenerative braking systemUS ARMY·Filed 1995·Granted Apr 9, 1996·102 cites·6 claims
- 0859US6910459B2HCCI engine with combustion-tailoring chamberUS ADMINISTRATION OF THE U S E·Filed 2003·Granted Jun 28, 2005·10 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →