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HYDRAULIC COUPLING PATENTS LTD

Overview
  • Total Patents
    56
About

HYDRAULIC COUPLING PATENTS LTD has a total of 56 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United States, France and Canada. Its main competitors in its focus markets mechanical elements, machines and transport are SSS GEARS LTD, AUTOMATIC DRIVE & TRANSMISSION and BORG WARNER AUTOMOTIVE TRANS & ENGINE COMPONENTS CORPORATION.

Patent filings in countries

World map showing HYDRAULIC COUPLING PATENTS LTDs patent filings in countries
# Country Total Patents
#1 United States 13
#2 France 12
#3 Canada 10
#4 Germany 6
#5 Denmark 5
#6 Austria 4
#7 Switzerland 3
#8 Spain 2
#9 United Kingdom 1

Patent filings per year

Chart showing HYDRAULIC COUPLING PATENTS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sinclair Harold 8
#2 Harold Sinclair 7
#3 Basebe Arthur Cecil 6
#4 Nikolaus Kiep Johann 4
#5 Clerk Robert Cecil 3
#6 Patents Ltd Hydraulic Coupling 3
#7 Cecil Basebe Arthur 3
#8 Cecil Clerk Robert 3
#9 Kiep Johann Nikolaus 2
#10 William Rogers Lewis 1

Latest patents

Publication Filing date Title
ES222872A1 Improvements relating to hydraulic turbo couplings
US2696081A Hydraulic coupling arrangement
GB714011A Hydraulic coupling arrangement
US2370438A Hydraulic coupling and brake
ES152137A1 Improvements in rotary force transmitters that use an operating liquid
US2187656A Hydraulic power transmitter
US2214819A Variable-speed power-transmission mechanism
US2253656A Hydraulic power-transmission system
US2202271A Transmission mechanism
US2184533A Power transmission mechanism
US2187667A Hydraulic power transmitter
US2123344A Means for use in the rotary drilling of bore holes
US2151730A Packing device for relatively rotatable parts
US2173036A Gear changing means for motor vehicles
US2082581A Hydraulic power transmission system
US2129884A Power transmission system
CA387428A Power transmission mechanism
CA405804A Rotary hydraulic power transmitter
CA420666A Hydraulic coupling and brake
CA372791A Rotatable part packing device