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JOHN GEORGE DOUGLAS

Overview
  • Total Patents
    12
About

JOHN GEORGE DOUGLAS has a total of 12 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United Kingdom and Germany. Its main competitors in its focus markets mechanical elements, transport and machines are BLESS WERNER M, KNORR BREMSE STEERINGSYSTEMS GMBH and ARATO ACHILLE.

Patent filings in countries

World map showing JOHN GEORGE DOUGLASs patent filings in countries
# Country Total Patents
#1 United Kingdom 10
#2 Germany 2

Patent filings per year

Chart showing JOHN GEORGE DOUGLASs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Douglas John George 2

Latest patents

Publication Filing date Title
GB1005057A Improvements in and relating to the starting of internal combustion engines
GB593210A Improvements in or relating to screw and nut transmission mechanism
GB583532A Improvements in and relating to screw and nut mechanisms
GB580096A Improvements in or relating to steering gear for automobiles and the like
GB512990A Improvements in steering gear for vehicles
GB490938A Improvements in and connected with worm and nut steering gear and the like
GB417418A Improvements in and connected with steering gear of motor road vehicles
GB376461A Improvements in and connected with variable speed transmission devices
GB361204A Improvements in or relating to steering gear
GB352145A Improvements in machines for polishing or grinding cam tracks and like sinuous surfaces