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WILLIAM HENRY ILLINGWORTH

Overview
  • Total Patents
    20
About

WILLIAM HENRY ILLINGWORTH has a total of 20 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United Kingdom, Switzerland and France. Its main competitors in its focus markets electrical machinery and energy and materials and metallurgy are ELEKTROSCHALTGERAETE ROCHLITZ, TOKYO DENSHI SEKKEI KK and TIANSHUI 213 ELECTRICAL APPARATUS COMPANY LTD.

Patent filings in countries

World map showing WILLIAM HENRY ILLINGWORTHs patent filings in countries
# Country Total Patents
#1 United Kingdom 9
#2 Switzerland 4
#3 France 4
#4 Germany 3

Patent filings per year

Chart showing WILLIAM HENRY ILLINGWORTHs patent filings per year from 1900 to 2020

Focus technologies

# Technology
#1 Electric switches
#2 Building materials

Top inventors

# Name Total Patents
#1 Illingworth William Henry 4
#2 Henry Illingworth William 4
#3 Baldwin William Trevor 1

Latest patents

Publication Filing date Title
GB303242A Improvements relating to electric circuit breakers
GB200268A Improvements relating to the manufacture of cores for mercurial cut-outs
GB190988A Apparatus involving the use of a number of electrical cut-outs
GB190096A An improved electrical cut-out
GB189284A An improved electrical cut-out
GB172446A An electrical cut-out
GB166286A An improved electrical circuit breaker
GB159917A An improved electrical cut-out
GB138439A Improvements in electrical cut-outs or circuit breakers