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PHILADELPHIA GEAR WORKS INC

Overview
  • Total Patents
    17
About

PHILADELPHIA GEAR WORKS INC has a total of 17 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets mechanical elements, machines and engines, pumps and turbines are PRATT CO HENRY, TK VALVE LTD and TAYLOR INNOVATIONS L L C.

Patent filings in countries

World map showing PHILADELPHIA GEAR WORKS INCs patent filings in countries
# Country Total Patents
#1 United States 15
#2 United Kingdom 2

Patent filings per year

Chart showing PHILADELPHIA GEAR WORKS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kron Harold O 7
#2 Dobbs Russell S 2
#3 Ball Russell C 2
#4 Mageoch Nelson H 2
#5 Plume William F 2
#6 Benson Ronald C 2
#7 Panish Edwin J 1
#8 Kron Harold Oscar 1
#9 Bruckel Jerome J 1
#10 Andrew Stratienko 1

Latest patents

Publication Filing date Title
US2988328A Turbines
US2830801A Seal-bearing agitator drives
US2946338A Valve operating mechanism
US2703991A Hand and power operated valve controls
GB721265A Improvement in or relating to motor operated valves
US2694320A Valve control
US2745294A Valve controls
GB706285A Improvement in valve actuating mechanism
US2634623A Valve control
US2592374A Valve actuating mechanism
US2629264A Motor-driven valve control
US2562278A Overload limiting apparatus
US2319842A Valve control
US2286597A Valve control
US2315389A Valve control
US2267116A Valve control
US2318010A Valve control