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CHURCHWARD ALEXANDER

Overview
  • Total Patents
    19
About

CHURCHWARD ALEXANDER has a total of 19 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets electrical machinery and energy, machines and environmental technology are KAMEI MACHINE PROJECT KK, PRECISE POWER CORP and ENTAC CO LTD.

Patent filings in countries

World map showing CHURCHWARD ALEXANDERs patent filings in countries
# Country Total Patents
#1 United States 9
#2 United Kingdom 6
#3 Canada 4

Patent filings per year

Chart showing CHURCHWARD ALEXANDERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Churchward Alexander 19

Latest patents

Publication Filing date Title
CA175634A Starter for automobiles
CA179614A Power transmission device for dynamos
CA155719A Dynamo and governor
US1153372A Power-transmission means for operating dynamos.
US1152878A Electric-lighting and battery-charging system for vehicles.
GB191307146A Improvements in Combined Dynamos and Governors.
GB190500954A Improvements in Vapour Electric Apparatus for Current Rectifying and other purposes
GB190421796A Improvements in and relating to Controllers for Electric Motors.
US791440A Method of operating alternating-current motors.
US745957A Alternating-current motor.
GB190115686A Improvements relating to Commutator-brushes for Dynamo-electric Generators and Motors
GB190115680A Improvements relating to Dynamo Electric Generators and Motors.
GB190115671A Improvements relating to Dynamo Electric Generators and Motors.
US713604A Dynamo-electric machine.
US713603A Dynamo-electric machine.
US708025A Rotary transformer.
US707390A Synchronous alternating-current motor.
US707389A Synchronous alternating-current motor.
CA208087A Starting mechanism for internal combustion engines