Individual holder
FREDERICK LEONARD L
US·6 granted patents·228 citations·filing 1973–1979
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
6 records- 0197US4033139APile driving hammer, apparatus and methodFREDERICK LEONARD L·Filed 1975·Granted Jul 5, 1977·140 cites·26 claims
- 0273US4366870APile hammer cushion blockFREDERICK LEONARD L·Filed 1979·Granted Jan 4, 1983·26 cites·13 claims
- 0369US4075858AHydraulic pile driving apparatus and methodFREDERICK LEONARD L·Filed 1976·Granted Feb 28, 1978·24 cites·34 claims
- 0466US4099387ASheet steel pile clampFREDERICK LEONARD L·Filed 1976·Granted Jul 11, 1978·24 cites·11 claims
- 0546US3931729ADynamic force measuring instrument for foundation pile and casingFREDERICK LEONARD L·Filed 1973·Granted Jan 13, 1976·6 cites·6 claims
- 0645US4040492AModular leads frame with noise abatement system and pile feederFREDERICK LEONARD L·Filed 1974·Granted Aug 9, 1977·8 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →