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FREDERICK LEONARD L

Overview
  • Total Patents
    13
About

FREDERICK LEONARD L has a total of 13 patent applications. Its first patent ever was published in 1973. It filed its patents most often in United States, Germany and Canada. Its main competitors in its focus markets civil engineering, machines and measurement are RIDLEY THOMAS WILLIAM, KONOIKEGUMI KK and SCHNABEL FOUNDATION.

Patent filings in countries

World map showing FREDERICK LEONARD Ls patent filings in countries

Patent filings per year

Chart showing FREDERICK LEONARD Ls patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Frederick Leonard L 13
#2 Greigg Edwin E 1

Latest patents

Publication Filing date Title
US4366870A Pile hammer cushion block
US4099387A Sheet steel pile clamp
US4075858A Hydraulic pile driving apparatus and method
US4033139A Pile driving hammer, apparatus and method
US4040492A Modular leads frame with noise abatement system and pile feeder
US3897835A Pile driver drive cap
US3927722A Pile driving moving cylinder hammer with valved, fixed piston
US3931729A Dynamic force measuring instrument for foundation pile and casing
US3887017A Modular leads frame with noise abatement system and pile feeder