Individual holder
KESTEL FREDERICK J
3 granted patents·103 citations·filing 1975–2004
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0186US4019753AAdjustable three-point tractor hitchKESTEL FREDERICK J·Filed 1975·Granted Apr 26, 1977·55 cites·6 claims
- 0284US7040980B1Combine harvester having double unloading auger systemKESTEL FREDERICK J·Filed 2004·Granted May 9, 2006·40 cites·19 claims
- 0338US4871031ARotary hoe toolKESTEL FREDERICK J·Filed 1988·Granted Oct 3, 1989·8 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →