Inventor · disambiguated record
Robert Happel
Also filed as: HAPPEL ROBERT
7 granted patents·161 citations·filing 1975–1989
86Inventor score
Files withDAIMLER BENZ AG7
Top patents by PatentIndex Score
7 records- 0194US3958757AInjection valveDAIMLER BENZ AG·Filed 1975·Granted May 25, 1976·56 cites·53 claims
- 0284US4284043AMethod for operating an air-compressing auto-igniting internal combustion engine and injection valve suitable thereforDAIMLER BENZ AG·Filed 1978·Granted Aug 18, 1981·33 cites·21 claims
- 0378US4224906ACombustion engine with internal combustionDAIMLER BENZ AG·Filed 1978·Granted Sep 30, 1980·17 cites·33 claims
- 0476US4266727ADouble-needle injection-valveDAIMLER BENZ AG·Filed 1978·Granted May 12, 1981·39 cites·13 claims
- 0540US4014301AExternally ignited internal combustion engine with ignition chamberDAIMLER BENZ AG·Filed 1975·Granted Mar 29, 1977·7 cites·24 claims
- 0639US4119066AInternal combustion engineDAIMLER BENZ AG·Filed 1976·Granted Oct 10, 1978·6 cites·20 claims
- 0730US4898136AMixture-compressing internal-combustion engine with a main combustion chamber and an auxiliary combustion chamberDAIMLER BENZ AG·Filed 1989·Granted Feb 6, 1990·3 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →