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CHALLENGER CIRCLE F INC

Overview
  • Total Patents
    11
About

CHALLENGER CIRCLE F INC has a total of 11 patent applications. Its first patent ever was published in 1982. It filed its patents most often in Canada and United States. Its main competitors in its focus markets electrical machinery and energy are ENTRELEC SA, BAYERISCHE ELEKTROZUBEHOER G M and ILME SPA.

Patent filings in countries

World map showing CHALLENGER CIRCLE F INCs patent filings in countries
# Country Total Patents
#1 Canada 6
#2 United States 5

Patent filings per year

Chart showing CHALLENGER CIRCLE F INCs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Fiumefreddo John 6
#2 Leong Henry 5
#3 Abramson Allen P 2
#4 Anthony Walter H 2
#5 Tibolla Julius F 2
#6 Stiles Theodore R 2

Latest patents

Publication Filing date Title
CA1222799A Electric lamp socket assembly having stripless wiring terminals
US4504104A Unitary wiring device body
US4493523A Adaptive strain relief for wiring devices
US4504108A Wiring device for mounting on sheet metal
US4529258A Electric lamp socket assembly having stripless wiring terminals
US4435032A Terminal connector with safety device
CA1182892A Weatherproof cover assembly for electrical wiring devices