Inventor · disambiguated record
Robert Zimmerman
Also filed as: ZIMMERMAN ROBERT · ZIMMERMAN ROBERT W
8 granted patents·1 pending application·132 citations·filing 1981–2009
88Inventor score
Top patents by PatentIndex Score
9 records- 0158US5000268ALifting assembly for agricultural implementsZIMMERMAN ROBERT·Filed 1990·Granted Mar 19, 1991·32 cites·17 claims
- 0256US4375115AExhaust stack cleaning and polishing implementZIMMERMAN ROBERT W·Filed 1981·Granted Mar 1, 1983·22 cites·8 claims
- 0350US4844174APress wheels for seed drillsZIMMERMAN ROBERT·Filed 1987·Granted Jul 4, 1989·19 cites·8 claims
- 0447US2010205640A1Drive thru visionSTEINBORN JEFFREY·Filed 2009·Application pending·0 cites
- 0546US5461994ASeed drill planting assemblyFiled 1993·Granted Oct 31, 1995·18 cites·41 claims
- 0644US5309852ASeed drillZIMMERMAN ROBERT·Filed 1992·Granted May 10, 1994·11 cites·47 claims
- 0743US5509363ASeed drill guide assemblyFiled 1995·Granted Apr 23, 1996·12 cites·32 claims
- 0843US4860672ATrip mechanism for drill seed bootZIMMERMAN ROBERT·Filed 1988·Granted Aug 29, 1989·9 cites·10 claims
- 0937US5685246APlanting assembly for seed drillFiled 1996·Granted Nov 11, 1997·9 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →