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ALBERT ERNEST DUTFIELD

Overview
  • Total Patents
    42
About

ALBERT ERNEST DUTFIELD has a total of 42 patent applications. Its first patent ever was published in 1927. It filed its patents most often in United Kingdom and Germany. Its main competitors in its focus markets civil engineering, transport and furniture and games are GUNNEBO ENTRANCE CONTROL S P A, RAWLINGS MFG CO LTD and SAAJOS KY J.

Patent filings in countries

World map showing ALBERT ERNEST DUTFIELDs patent filings in countries
# Country Total Patents
#1 United Kingdom 41
#2 Germany 1

Patent filings per year

Chart showing ALBERT ERNEST DUTFIELDs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB745737A Improvements in panel edge mounting systems
GB709753A Improvements in or relating to control mechanisms for slidable windows
GB717921A Improvements in glazing systems
GB717960A Improvements in glazing systems
GB679070A Improvements relating to adjustable windows
GB683487A Improvements relating to adjustable windows
GB637345A Improvements relating to adjustable windows
GB620864A Improvements relating to ceiling blocks
GB640088A Improvements in pre-fabricated framework for use in assembling electric lamp shades,showcases and the like
GB619766A Improvements in framework for picture frames, mirrors and the like
GB601368A Improvements in and relating to the construction of windows, especially those of vehicles
GB541434A Improvements relating to ventilators
GB536318A Improvements relating to adjustable panels, especially windows
GB533407A Improvements relating to adjustable windows
GB532005A Improvements relating to vertically slidable windows
GB528421A Improvements relating to adjustable windows
GB523776A Improvements relating to the mounting of windows and like panels
GB518538A Improvements relating to adjustable windows
GB518364A Improvements relating to the mounting of windows and like panels
GB518407A Improvements relating to metal channelling for window frames