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LETOURNEAU INC

Overview
  • Total Patents
    373
About

LETOURNEAU INC has a total of 373 patent applications. Its first patent ever was published in 1935. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets civil engineering, transport and machines are LETOURNEAU ROBERT G, MARION STEAM SHOVEL CO and LE TOURNEAU ROBERT G.

Patent filings per year

Chart showing LETOURNEAU INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Le Tourneau Robert G 191
#2 Le Tourneau Robert Gilmore 18
#3 Dowdy Michael J 8
#4 Bowes Julian F 8
#5 Darwiche Mahmoud K M 7
#6 Tourneau Inc R G Le 6
#7 Baker Dwight 6
#8 Raymond Peterson Oscar 5
#9 Bird Len O 4
#10 Nelson Gary Lee 4

Latest patents

Publication Filing date Title
US7201244B2 Vehicle for materials handling and other industrial uses
US5915882A Jack-up platform locking apparatus and method
SI9012274A Method and apparatus for propelling and retarding off-road haulers
SI9011904A Truck load weighing method and apparatus
US3974429A Propulsion control system for electrically powered vehicles
US3967171A Propulsion control system for electrically powered vehicles
US3953775A Propulsion control system for electrically powered vehicles
US3764149A Rotary seal
US3684314A Adjustable ball pin pivot
US3680890A Safety lock for articulated vehicle
US3656795A Spreader skew arrangement
US3586117A Method and system for steering a vehicle
US3633701A Steering method and system employing ellipsoidal relationships
US3606061A Front end loader type vehicle
US3545627A Heavy duty crane for use in a narrow loading area
US3492556A Control system for electrically powered vehicles
US2845694A Means and method for forming coils
US2717436A Outer form for house form assembly
US2708039A Bumper unit for cranes
US2729298A Wheel mounted motor and air-operated clutch with electrical control therefor