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CHORKEY WILLIAM J

Overview
  • Total Patents
    37
About

CHORKEY WILLIAM J has a total of 37 patent applications. Its first patent ever was published in 1963. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets mechanical elements and machines are KETTERING CHARLES F, STRNAD FERDINAND and TWINFOLD NOMINEES.

Patent filings in countries

World map showing CHORKEY WILLIAM Js patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 5
#3 United Kingdom 4
#4 Germany 3
#5 Italy 3
#6 Sweden 3
#7 Switzerland 2
#8 Spain 2
#9 Republic of Korea 2
#10 Australia 1
#11 Brazil 1
#12 China 1
#13 Mexico 1

Patent filings per year

Chart showing CHORKEY WILLIAM Js patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements
#2 Machines

Top inventors

# Name Total Patents
#1 Chorkey William J 20
#2 Chorkey William Joseph 12
#3 Joseph Chorkey William 2
#4 Woodruff Harold L 1

Latest patents

Publication Filing date Title
ES2016005A6 Valve with balanced solenoid-type operation
US4821774A Solenoid operated valve with balancing means
US4834337A Solenoid operated valve with solenoid wattage adjustment means
CA1214379A Valve with straight through flow
US4598736A Solenoid operated valve with balancing means
US4548238A Directional control valve with straight through flow
US4526202A Valve with straight through flow
US4587991A Valve with uniplanar flow
US3451422A Check valve
GB1058042A Shock absorber
US3168168A Adjustable hydraulic shock absorber
US3298394A Check valve
CA732976A Adjustable hydraulic shock absorber