Inventor · disambiguated record
Donald Gene Haffner
Also filed as: HAFFNER DONALD G · HAFFNER DONALD GENE
4 granted patents·105 citations·filing 1975–1977
79Inventor score
Technology areasA01D
Files withJACOBSEN MFG CO4
Top patents by PatentIndex Score
4 records- 0182US3992858AHydraulic system for controlling a gang of lawn mowersJACOBSEN MFG CO·Filed 1975·Granted Nov 23, 1976·42 cites·16 claims
- 0280US4149363ALawn mower catcherJACOBSEN MFG CO·Filed 1977·Granted Apr 17, 1979·34 cites·6 claims
- 0365USD249519SCombined lawn mower and grass catcherJACOBSEN MFG CO·Filed 1977·Granted Sep 19, 1978·9 cites·1 claims
- 0462US4149362ACombined lawn mower and grass catcherJACOBSEN MFG CO·Filed 1977·Granted Apr 17, 1979·20 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →