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CRABTREE ELECTRICAL IND LTD

Overview
  • Total Patents
    130
About

CRABTREE ELECTRICAL IND LTD has a total of 130 patent applications. Its first patent ever was published in 1976. It filed its patents most often in United Kingdom, Hong Kong and Singapore. Its main competitors in its focus markets electrical machinery and energy, machines and mechanical elements are WÖHNER GMBH & CO KG ELEKTROTECHNISCHE SYSTEME, ALFRED WATSON and WOEHNER GMBH & CO KG ELEKTROTECHNISCHE SYSTEME.

Patent filings per year

Chart showing CRABTREE ELECTRICAL IND LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Spencer Graham Johns 14
#2 Somerfield Eric Albert 13
#3 Pickering Ian Jack 12
#4 Morris Joseph Thomas 12
#5 Bowen Peter William 10
#6 Watkins Frederick George 7
#7 Horton Henry Charles 7
#8 Butcher Eric James 6
#9 Pickett Bruce William 6
#10 Spencer Graham John 5

Latest patents

Publication Filing date Title
GB9704006D0 Residual current devices
GB9605307D0 Residual current devices
GB9518927D0 Residual current devices
GB9518928D0 Improvements relating to circuit breakers
GB9513048D0 Improvements relating to electric switches
GB9513045D0 Indicating device
GB9513049D0 Improvements relating to circuit breakers
GB9416569D0 Residual current devices
GB9213446D0 Improvements relating to electricity distribution units
GB9213461D0 Mounting box
GB9213448D0 Electric switches and other electric devices
US5486979A Electricity supply assembly
GB9112869D0 Improvements relating to electric switches
GB9018347D0 Improvements relating to bus bars
GB9018346D0 Improvements relating to the mounting of circuit breakers
GB9006825D0 "Contactor and switch therefor"
GB8923502D0 Electric switches
GB8903974D0 Improvements relating to circuit breakers
GB8814283D0 Improvements relating to circuit breakers
GB8801203D0 Electric plugs