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DOUGLAS THEODORE

Overview
  • Total Patents
    31
About

DOUGLAS THEODORE has a total of 31 patent applications. Its first patent ever was published in 1912. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, engines, pumps and turbines and transport are HOOF ADDISON C, JOSEF ALTMANN and PETRY NICHOLAS A.

Patent filings in countries

World map showing DOUGLAS THEODOREs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 7
#3 United Kingdom 6
#4 Austria 4
#5 Switzerland 1

Patent filings per year

Chart showing DOUGLAS THEODOREs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Douglas Theodore 31

Latest patents

Publication Filing date Title
GB121951A Improvement in Stop Gear for Aeronautical Engines.
CA191517A Valve
CA185752A Speed regulating device
CA191493A Speed controller
US1301664A Bearing.
GB107377A Improvement in Regulating Systems for Motor Vehicles.
GB117262A Improvements in Governors.
GB105567A Improvements in Governors and Valves Controlled thereby.
CA186679A Engine governor
US1238113A Regulating device.
US1221702A Valve construction.
US1214287A Governor.
US1214286A Regulating device.
US1128115A Automatic engine-speed governor for vehicles.
GB191313887A Improvements in Speed Controllers.
GB191313886A Improvements in Speed Governors.
CA150617A Speed controller
CA150616A Speed governor
US1168179A Motor-vehicle speed-controller.
US1121485A Combined speed-controller and brake.