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DOUGLAS MOTORS LTD

Overview
  • Total Patents
    90
About

DOUGLAS MOTORS LTD has a total of 90 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United Kingdom, France and Germany. Its main competitors in its focus markets engines, pumps and turbines, transport and mechanical elements are INDIAN MOTOCYCLE COMPANY, PEUGEOT MOTOCYCLES and NEW HUDSON LTD.

Patent filings in countries

World map showing DOUGLAS MOTORS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 81
#2 France 4
#3 Germany 3
#4 Spain 1
#5 United States 1

Patent filings per year

Chart showing DOUGLAS MOTORS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leslie Bailey Stephen 1
#2 Wilson Douglas William 1
#3 Bailley Stephen Leslie 1
#4 Douglas William Wilson 1

Latest patents

Publication Filing date Title
DE559864C Multi-cylinder internal combustion engine
GB367101A Clutch control mechanism
GB357862A Internal-combustion engine cylinder heads
GB364743A Friction clutches
GB359178A Knee-grips for motor cycles
GB363439A Carburettors for internal-combustion engines
GB357769A Lubrication systems for internal-combustion engines
GB349335A Lifting and conveyor trucks
GB349190A Clutches
GB350524A Speedometer drive
GB349603A Motor trucks
GB342764A Carburettor control devices
GB342666A Motor trucks
GB336747A Stands for motor cycles
GB328490A Lubrication of internal combustion engines
GB330030A Carburettor control for internal combustion engines
GB324254A Brakes for motor trucks
GB322693A Motor trucks
GB323401A Motor trucks
GB325381A Gearing for motor trucks