Inventor · disambiguated record
Donald J. Hemmelgarn
Also filed as: HEMMELGARN DONALD J
4 granted patents·63 citations·filing 1979–1982
77Inventor score
Top patents by PatentIndex Score
4 records- 0180US4206699ARetracting bolster for a pressMINSTER MACHINE·Filed 1979·Granted Jun 10, 1980·25 cites·18 claims
- 0261US4534725AApparatus for manufacturing ovenable paperboard articlesINT PAPER CO·Filed 1982·Granted Aug 13, 1985·18 cites·19 claims
- 0348US4376556ALinear bearing arrangementBERGMAN RAYMOND A·Filed 1980·Granted Mar 15, 1983·10 cites·24 claims
- 0445US4206701ALock mechanism for press shutheight adjustmentMINSTER MACHINE·Filed 1979·Granted Jun 10, 1980·10 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →