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JAMES HENRY D

Overview
  • Total Patents
    15
About

JAMES HENRY D has a total of 15 patent applications. Its first patent ever was published in 1905. It filed its patents most often in Canada and United States. Its main competitors in its focus markets electrical machinery and energy are NIPPON SEKKEI KK, ZHIYUAN PAN and ZHONGSHAN KESHUN ANALYSIS & TEST TECHNOLOGY CO LTD.

Patent filings in countries

World map showing JAMES HENRY Ds patent filings in countries
# Country Total Patents
#1 Canada 14
#2 United States 1

Patent filings per year

Chart showing JAMES HENRY Ds patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Electrical machinery and energy

Focus technologies

# Technology
#1 Special light sources
#2 Non-portable lighting devices

Top inventors

# Name Total Patents
#1 James Henry D 15
#2 Dick William A 1

Latest patents

Publication Filing date Title
US2262586A Lighting suspension fixture
CA183085A Electric motor controller
CA129345A Electric switch
CA129346A Control system and switch
CA128058A Electric circuit controller
CA117078A System of electric motor control
CA124398A System of electric motor control
CA116933A Electric motor control
CA116785A System of electric motor control
CA116936A Motor control system
CA116939A Method of control of electric motors
CA114918A System of control for electric motors
CA113807A Controller for electric motors
CA96343A Electrical controller
CA96342A Electric control system