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WOODHEAD INC DANIEL

Overview
  • Total Patents
    48
About

WOODHEAD INC DANIEL has a total of 48 patent applications. Its first patent ever was published in 1917. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, measurement and machines are DOUGLAS & RUDD MFG CO, HOFFMEISTER & SOHN and BENJAMIN ELECTRIC MFG CO.

Patent filings in countries

World map showing WOODHEAD INC DANIELs patent filings in countries
# Country Total Patents
#1 United States 18
#2 Canada 13
#3 United Kingdom 10
#4 Japan 4
#5 Germany 1
#6 France 1
#7 Italy 1

Patent filings per year

Chart showing WOODHEAD INC DANIELs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Trevithick Tony 8
#2 Eckart George R 5
#3 Kramer David E 4
#4 Woodhead Daniel 3
#5 Kollath Francis C 2
#6 Eckart G 2
#7 Deberadinis Louis A 2
#8 Avramovich Radosav 2
#9 Trevithick T 2
#10 Stoll Russell F 2

Latest patents

Publication Filing date Title
US4626834A Ground continuity monitor for tool stop controllers
US4406505A Grounding clip for electrical fixtures
US4307436A Power distribution center
GB2034055A Continuity Testing Circuit for Three-wire Electrical Power Systems
US4197959A Covers for electrical receptacles
US4018492A Advance grounding system for electrical connectors
US4006958A Right angle electrical plug
US3917941A Lamp guard
US4010336A Hand lamp
US4035045A Grounding jack
CA986075A Hand lamp with pivotable wire cage section
CA1001732A Fused electrical plug
CA995480A Contact tester for measuring frictional resistance
CA973522A Lamp capsule
GB1416956A Electric switch
GB1406522A Electrical receptacle with safety cofer
US3833801A Tube light hand lamp
US3767913A Ventilated lamp guard
US3851979A Cable and hose clamp
US3732524A Electrical receptacle with safety cover