Inventor · disambiguated record
Gerhard Duck
Also filed as: DUCK GERHARD · DUECK GERHARD
4 granted patents·1,067 citations·filing 1978–1988
80Inventor score
Files withGOETZE AG4
Top patents by PatentIndex Score
4 records- 0194US4957212ANon-circular piston ringsGOETZE AG·Filed 1988·Granted Sep 18, 1990·1k cites·4 claims
- 0253US4139205ACircumferentially resilient piston ringGOETZE AG·Filed 1978·Granted Feb 13, 1979·12 cites·14 claims
- 0343US4973066APiston ringGOETZE AG·Filed 1985·Granted Nov 27, 1990·13 cites·1 claims
- 0433US4355815APiston ringGOETZE AG·Filed 1980·Granted Oct 26, 1982·5 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →