Inventor · disambiguated record
Leonard L. Frederick
Also filed as: FREDERICK LEONARD L
9 granted patents·287 citations·filing 1973–2003
90Inventor score
Top patents by PatentIndex Score
9 records- 0197US4033139APile driving hammer, apparatus and methodFREDERICK LEONARD L·Filed 1975·Granted Jul 5, 1977·140 cites·26 claims
- 0278US5581013AMethod and system for obtaining useful foundation informationFREDERICK ENGINEERING COMPANY·Filed 1995·Granted Dec 3, 1996·50 cites·18 claims
- 0373US4366870APile hammer cushion blockFREDERICK LEONARD L·Filed 1979·Granted Jan 4, 1983·26 cites·13 claims
- 0469US4075858AHydraulic pile driving apparatus and methodFREDERICK LEONARD L·Filed 1976·Granted Feb 28, 1978·24 cites·34 claims
- 0566US4099387ASheet steel pile clampFREDERICK LEONARD L·Filed 1976·Granted Jul 11, 1978·24 cites·11 claims
- 0646US3931729ADynamic force measuring instrument for foundation pile and casingFREDERICK LEONARD L·Filed 1973·Granted Jan 13, 1976·6 cites·6 claims
- 0745US4040492AModular leads frame with noise abatement system and pile feederFREDERICK LEONARD L·Filed 1974·Granted Aug 9, 1977·8 cites·2 claims
- 0839US6981425B2Dynamic force measuring instrument having a foil belt transducerFREDERICK ENGINEERING CO·Filed 2003·Granted Jan 3, 2006·2 cites·16 claims
- 0933US6098447ADynamic force measuring instrument for foundation and casingFREDERICK ENGINEERING CO·Filed 1998·Granted Aug 8, 2000·7 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →