Inventor · disambiguated record
Erik Hefter
Also filed as: HEFTER ERIK
3 granted patents·43 citations·filing 1974–1988
71Inventor score
Top patents by PatentIndex Score
3 records- 0170US4869557ADriver brake valveKNORR BREMSE AG·Filed 1988·Granted Sep 26, 1989·17 cites·17 claims
- 0261US4325573ADevice for regulating discharge of sand from a vehicle sanderKNORR BREMSE GMBH·Filed 1980·Granted Apr 20, 1982·20 cites·24 claims
- 0338US3948571AValve for controlling pressure medium actuated brakes for railway and other vehiclesKNORR BREMSE GMBH·Filed 1974·Granted Apr 6, 1976·6 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →