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WEATHERHEAD CO

Overview
  • Total Patents
    765
About

WEATHERHEAD CO has a total of 765 patent applications. Its first patent ever was published in 1929. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, mechanical elements and machine tools are WEATHERHEAD JR ALBERT J, TIGERHOLM AB and UMAC INC.

Patent filings in countries

World map showing WEATHERHEAD COs patent filings in countries

Patent filings per year

Chart showing WEATHERHEAD COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Courtot Louis B 47
#2 Weatherhead Jr Albert J 43
#3 Budzich Tadeusz 42
#4 St Clair Theodore A 27
#5 Tadeusz Budzich 22
#6 Patel Hiralal V 20
#7 Stecher Henry D 19
#8 Baldwin Jr John D 18
#9 Crawley Charles H 17
#10 Miller Paul J 16

Latest patents

Publication Filing date Title
JPS5783787A Friction reduced resisting member
AU3562878A Crimping machine
US4118970A Crimping diameter adjusting valve
US4106689A Disposable centrifugal separator
US4107048A Turbulence amplifier baffle
US4063760A Quick connect coupling
US4087972A Brake booster with spring type ratio changer
US4034593A Crimping machine with automatic swing open pushers
US4034592A Crimping machine with automatic hinge open pushers
CA1049987A Centrifugal separator with additive means
US3975059A Blend back proportioning valve
US4007665A Brake booster with improved pedal feel characteristics
US4046315A Centrifugal separator with discharge pump
US3966263A Blend back proportioning valve for brake system
US4006524A Method of making a hose coupling
US3988967A Brake booster with hydraulic ratio changer
US4007593A Motor vehicle open center series hydraulic circuit
US3965570A Hose skiving tool
US4005724A Tilt responsive valve
US3995710A Tilt-responsive valve