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LEON DUFOUR

Overview
  • Total Patents
    108
About

LEON DUFOUR has a total of 108 patent applications. Its first patent ever was published in 1903. It filed its patents most often in France, United Kingdom and United States. Its main competitors in its focus markets engines, pumps and turbines, transport and agriculture are DUFOUR LEON, GUTBROD MOTORENBAU GMBH and STOCK MOTORPFLUG AKT GES.

Patent filings in countries

World map showing LEON DUFOURs patent filings in countries
# Country Total Patents
#1 France 29
#2 United Kingdom 28
#3 United States 22
#4 Germany 19
#5 Switzerland 7
#6 Canada 2
#7 Ireland 1

Patent filings per year

Chart showing LEON DUFOURs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dufour Leon 33
#2 Leon Dufour 30
#3 Mozer Rene 2

Latest patents

Publication Filing date Title
GB790829A Improvements in or relating to soil cultivating devices and to cultivator elements therefor
GB808508A Improvements in or relating to mowing machines
US2738848A Agricultural tractor with rocking section
GB727538A Improvements in and relating to a tractor for agricultural and transportation purposes
GB734452A Improvements in and relating to a tractor for agricultural and transportation purposes
GB687915A Improvements in or relating to tractors
US2738846A Brake operated by steering mechanism
GB684380A Improvements in mechanism for steering a tractor
US2592668A Locking mechanism for a differential
GB658593A Improvements in or relating to locking mechanism for a differential
US2515991A Coupling mechanism for connecting the rear end of a tractor mounted ower plant to a trailer device
US2429711A Agricultural tractor or vehicle
IE17312L Improvements in or relating to road tractors
GB600217A Improvements in or relating to agricultural tractors or road vehicles
GB588022A Improvements in or relating to the steering of vehicles
US2453417A Steering means for vehicles
US2475825A Coupling mechanism for connecting the rear end of a tractor mounted power plant to atrailer
GB587454A Improvements in or relating to tractors or like vehicles
US2329885A Supplying of gases to two-stroke internal combustion engines
GB554134A Improvements in and relating to two stroke internal combustion engines