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WELWYN ELECTRIC LTD

Overview
  • Total Patents
    111
About

WELWYN ELECTRIC LTD has a total of 111 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets electrical machinery and energy, measurement and audio-visual technology are INT RESISTANCE CO, ELECTRO RESISTANCE and POLYTRONICS TECHNOLOGY CORP.

Patent filings in countries

World map showing WELWYN ELECTRIC LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 81
#2 United States 12
#3 Germany 8
#4 Canada 7
#5 France 3

Patent filings per year

Chart showing WELWYN ELECTRIC LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Edge James 5
#2 Watts Jack 5
#3 France George 4
#4 Canegallo Giovanni 3
#5 Dearden Jack 3
#6 Pye Walter Arnold 3
#7 Garnsworthy Courtney 2
#8 Whitfield Eric Horne 2
#9 Ferry Robert 2
#10 Cox Bruce Neville 2

Latest patents

Publication Filing date Title
GB2088644A Electrical resistor
GB2088643A Electrical resistors
GB2054276A Electrical resistor network
GB2051775A Bonding electrical components to thick film conductors
GB2050102A Attenuator
US4325183A Process for producing an electrical resistor having a metal foil bonded to a ceramic or glass-ceramic substrate
GB2040535A Microcomputer Educational Apparatus
GB2032191A Improvements in Electrical Resistors
GB1577097A Electrical resistors
GB1588615A Electrical spark gap device
GB1577684A Fuse array
GB1550998A Electrical resistors
GB1563473A Electrical resistors
GB1558748A Electrical resistor network
GB1578081A Load failure detector
DE2740332A1 COMPOSITE SHAPED BODY AND PROCESS FOR ITS MANUFACTURING
GB1539774A Electrical resistors
GB1525883A Process for manufacturing a covered electronic component
GB1500205A Electrical resistors
GB1548035A Electrical resistors