Inventor · disambiguated record
Howard D. Irwin
Also filed as: IRWIN HOWARD D · IRWIN HOWARD DALE
6 granted patents·153 citations·filing 1975–1983
83Inventor score
Top patents by PatentIndex Score
6 records- 0190US4311098ARailway car truck bolsterDU PONT·Filed 1980·Granted Jan 19, 1982·65 cites·2 claims
- 0288US4351242ARailway car truck side frameDU PONT·Filed 1980·Granted Sep 28, 1982·59 cites·1 claims
- 0362US3986752AResilient center bearing assemblyDU PONT·Filed 1975·Granted Oct 19, 1976·19 cites·4 claims
- 0433US4174140AResilient center plane assemblyDU PONT·Filed 1977·Granted Nov 13, 1979·6 cites·12 claims
- 0528US4528846AMeasuring devices for watercraftIRWIN HOWARD D·Filed 1983·Granted Jul 16, 1985·3 cites·9 claims
- 0626US4122711ADrag force knotmeterIRWIN HOWARD D·Filed 1977·Granted Oct 31, 1978·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →