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SQUARE D

Overview
  • Total Patents
    27
About

SQUARE D has a total of 27 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United States and France. Its main competitors in its focus markets electrical machinery and energy, machines and civil engineering are TOWER MFG CORP, KOPP HEINRICH AG and MOELLER GEBAEUDEAUTOMATION KG.

Patent filings in countries

World map showing SQUARE Ds patent filings in countries
# Country Total Patents
#1 United States 26
#2 France 1

Patent filings per year

Chart showing SQUARE Ds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zylstra Henry J 6
#2 Mcginnis James P 5
#3 Lass John L 2
#4 Venzke Donald R 2
#5 Jorgensen George N 2
#6 Chabot Ferdinand E 1
#7 Swindler David L 1
#8 Miller Joel L 1
#9 Mcdonald Harold D 1
#10 Hood Teresa I 1

Latest patents

Publication Filing date Title
US5444423A Latch mechanism for a circuit breaker
US5430419A Double break circuit breaker having improved secondary section
US5416287A Circuit breaker slow close mechanism and method of using same
US5416291A Current limiting circuit breaker operating mechanism including linkage
US4214667A Screw mounting mechanism for electrical outlet box
US4179174A Joint clip assembly for bus bars
US4173004A Magnetic latch device for a clapper type contactor
US4184733A Segmented fanning strip
US4159504A Site assembled electrical load center
US4163501A Electrical outlet box and wall mounting clamp therefor
US4215328A Circuit breaker having an electronic fault sensing and trip initiating unit
US4197567A Portable ground fault circuit interrupter
US4213165A Circuit breaker having an electronic fault sensing and trip initiating unit
US4209817A Circuit breaker having an electronic fault sensing and trip initiating unit
US4208693A Circuit breaker having an electronic fault sensing and trip initiating unit
US4208689A Circuit breaker having an electronic fault sensing and trip initiating unit
US4182928A Heating element terminal
US4208690A Circuit breaker having an electronic fault sensing and trip initiating unit
US4209818A Circuit breaker having an electronic fault sensing and trip initiating unit
US4194378A Combination lock extraction apparatus