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WILLIAMS GERALD J

Overview
  • Total Patents
    16
About

WILLIAMS GERALD J has a total of 16 patent applications. Its first patent ever was published in 1981. It filed its patents most often in Canada and United States. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and machine tools are MATTHEWS N, BROADSUPER LTD and ABENAVOLI BRUNO.

Patent filings in countries

World map showing WILLIAMS GERALD Js patent filings in countries
# Country Total Patents
#1 Canada 11
#2 United States 5

Patent filings per year

Chart showing WILLIAMS GERALD Js patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Williams Gerald J 16

Latest patents

Publication Filing date Title
CA2109548A1 Symmetrical leading link front wheel suspension for motorcycles
US4592309A Internal combustion engine
CA1165267A Rotary turret finishing machine for tubular paper cores
CA1155768A Cam operated engine
US4510894A Cam operated engine
CA1149750A Internal combustion engine with improved expansion ratio
CA1155767A Drum rotor valved axial piston engine
US4493296A Three cycle engine with varying combustion chamber volume
CA1144864A Three cycle engine with varying combustion chamber volume
US4449489A Varying geometric compression ratio engine
US4516536A Three cycle internal combustion engine
CA1156153A Positive total exhaust expulsion internal combustion engine
CA1129346A Sleeve valved engine with positive total exhaust expulsion
CA840296A Hydraulic roll retarder