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SELF CHANGING GEAR COMPANY LTD

Overview
  • Total Patents
    37
About

SELF CHANGING GEAR COMPANY LTD has a total of 37 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets mechanical elements, transport and electrical machinery and energy are GETRIEBE & MOTOREN G M B H WAA, KER TRAIN SYSTEMS and ZHEJIANG RUIYANG FORGING CO LTD.

Patent filings in countries

World map showing SELF CHANGING GEAR COMPANY LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 27
#2 United States 5
#3 Canada 3
#4 Switzerland 1
#5 France 1

Patent filings per year

Chart showing SELF CHANGING GEAR COMPANY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Miller Albert A 4
#2 Gordon Wilson Andrew 3
#3 Arthur Miller Albert 3
#4 Company Ltd Self-Changing Gear 1
#5 Wilson Andrew G 1
#6 Miller Albert Arthur 1
#7 Wilson Andrew Gordon 1

Latest patents

Publication Filing date Title
FR1058867A Transmission mechanism for vehicles and vehicles fitted with such a mechanism
GB700995A Improvements in or relating to transmission gearing for vehicles
US2715455A Friction clutch responsive to reversal of driven member
GB705388A Improvements in and relating to control valves for fluids
US2721639A Torque and centrifugal engaged clutch
GB691363A Improvements in and relating to brakes or friction clutches
GB683130A Improvements in and relating to friction clutches
GB669923A Improvements in and relating to hydraulic control means for multiple speed gear boxes
US2612792A Epicyclic gear
GB639104A Improvements relating to epicyclic change speed gears
GB642054A Improvements relating to epicyclic gears
US2673633A Torque and speed responsive clutch
GB641831A Improvements in and relating to epicyclic gears
GB633494A Improvements in or relating to centrifugally operated clutches
US2542171A Band brake
GB618582A Improvements in and relating to band brakes
GB618500A Improvements in and relating to band brakes
GB578602A Improvements in and relating to epicyclic power transmission gearing
GB595609A Improvements in and relating to hydraulic brakes or clutch devices
GB577587A Improvements in and relating to hydraulic systems for gear controls