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ALBERT EDWARD CHAPMAN

Overview
  • Total Patents
    28
About

ALBERT EDWARD CHAPMAN has a total of 28 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United Kingdom, Canada and Germany. Its main competitors in its focus markets electrical machinery and energy, audio-visual technology and digital networks are DELTA CO, CHARLES REGINALD COOK and SCHMITT ARTHUR J.

Patent filings in countries

World map showing ALBERT EDWARD CHAPMANs patent filings in countries
# Country Total Patents
#1 United Kingdom 24
#2 Canada 2
#3 Germany 2

Patent filings per year

Chart showing ALBERT EDWARD CHAPMANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wadsworth Lawrence Herbert 2

Latest patents

Publication Filing date Title
GB453960A Improvements in and relating to holders for tubular electric lamps
GB437291A Improvements in and relating to massage appliances
GB429079A Improvements in and relating to combs
GB413362A Improvements in and relating to the mounting of electric lamps of the tubular type
GB396909A Improvements in and relating to electric incandescent lamps
GB397948A Improvements in and relating to electric incandescent filament lamps
GB396465A Improvements in and relating to electric incandescent filament lamps
GB398526A Improvements in and relating to holders for electric gas filled discharge lamps
GB395441A Improvements in and relating to electrical transformers
GB395711A Improvements in and relating to electric discharge lamps
GB371370A Improvements in and relating to illuminated electric signs for advertising or other purposes
GB325883A Improvements in and relating to sound receivers and projectors such as telephone mouth pieces, horns and the like
GB326771A Improvements in and relating to electric discharge tubes
GB329639A Improvements in and relating to luminous electric discharge tubes
GB275708A Improvements in and relating to electric contact plugs, couplings, terminals and the like
GB262968A Improvements in and relating to electric wire attachments
GB248464A Improvements in electric couplings
GB248692A Improvements in electric couplings
GB229811A Improvements in and relating to electric terminal tags and connectors
GB220731A Improved electric contact or terminal