Learn more

GRAHAM TRANSMISSIONS INC

Overview
  • Total Patents
    27
About

GRAHAM TRANSMISSIONS INC has a total of 27 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States, United Kingdom and Germany. Its main competitors in its focus markets mechanical elements, machines and weapons are UT GLOBAL CO LTD, AUTOMATIC TRANSMISSION COMPANY and PERRY FORBES G D.

Patent filings in countries

World map showing GRAHAM TRANSMISSIONS INCs patent filings in countries
# Country Total Patents
#1 United States 19
#2 United Kingdom 7
#3 Germany 1

Patent filings per year

Chart showing GRAHAM TRANSMISSIONS INCs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements
#2 Machines
#3 Weapons

Top inventors

# Name Total Patents
#1 Alsch Richard E 6
#2 Jones Lloyd E 4
#3 Graham Louis A 4
#4 Alain Madle 2
#5 Madle Alain M 1
#6 Graham Richard A 1
#7 Ivar Jepson 1
#8 Alsch Richard Emanuel 1
#9 Emanuel Alsch Richard 1
#10 Weis William B 1

Latest patents

Publication Filing date Title
US3668892A Flexible drive coupling
US3585871A Variable transmission
DE1625060A1 Speed change gear
GB1124670A Improvements in variable speed transmissions
US3424018A Variable transmission
US3357277A Variable speed planetary friction gear transmission
US3349642A Variable speed transmission
US3274859A Torque switch for variable speed transmissions
US3085450A Transmission
US2831373A Variable speed friction gearing
US2564160A Transmission
US2535409A Variable-speed transmission
US2448598A Variable-speed transmission
GB596991A Variable speed transmission
US2405957A Variable-speed transmission
GB571500A Universal joints
US2373897A Universal joint
GB571499A Improvements in universal joints
US2344352A Reversible power drive
US2319319A Torque transmitting device