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E T CUNNINGHAM

Overview
  • Total Patents
    15
About

E T CUNNINGHAM has a total of 15 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, telecommunications and basic communication technologies are C D TUSKA COMPANY, AMTB TECH and LOVEJOY DEV CORP.

Patent filings in countries

World map showing E T CUNNINGHAMs patent filings in countries
# Country Total Patents
#1 United States 15

Patent filings per year

Chart showing E T CUNNINGHAMs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Danielson Ernest G 8
#2 Wise Roger M 7
#3 Camfield Russell W 3

Latest patents

Publication Filing date Title
US1949507A Relay system
US1912470A Amplifier system
US1617733A Neutralizing system
US1589946A Radio tuning device
US1970640A Radio system and apparatus
US1552052A Indicating dial
US1618399A Variable condenser
US1704497A Radio detector system
US1630693A Transformer
US1562619A Variable inductance
US1584167A Tube adapter
US1555461A Electric-tube socket
US1560378A Multiple-circuit double-throw switch
US1460408A Rheostat
US1455081A Inductance coil