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D S PLUGS LTD

Overview
  • Total Patents
    15
About

D S PLUGS LTD has a total of 15 patent applications. Its first patent ever was published in 1948. It filed its patents most often in United Kingdom, Canada and United States. Its main competitors in its focus markets electrical machinery and energy and measurement are SCHWEITZER EDMUND O, EATON ELECTRIC LTD and J B T INSTR INC.

Patent filings in countries

World map showing D S PLUGS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 Canada 2
#3 United States 2
#4 Denmark 1
#5 France 1
#6 Ireland 1

Patent filings per year

Chart showing D S PLUGS LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Lund Jack 5
#2 Cooper Bruce Lusk 4
#3 Chandler John 2
#4 John Chandler 1
#5 Jack Lund 1
#6 Lusk Cooper Bruce 1
#7 Cooper Bruce L 1
#8 Chandler John W 1
#9 William Chandler John 1
#10 Chandler John William 1

Latest patents

Publication Filing date Title
GB1213736A Fusible elements for cartridge fuses
US2878339A Pins of electric plug and socket joints
FR1114953A Improvements to electric pocket lamps
US2839724A Flashlight and electrical tester
IE21464L Electric torches
GB777849A Improvements in and relating to electric switches
GB774208A Combined electrical switch and socket outlet
GB759103A Improvements in and relating to pins of electric plug and socket connectors
GB775662A Improvements in or relating to electric torches
GB714762A Improvements in and relating to electric tumbler switches
GB657263A Improvements in and relating to electric tumbler switches
GB638780A Improvements in and relating to plugs for electric circuits
CA616651A Pins of electric plug and socket joints
CA583587A Flash light and fuse tester