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HERBERT GORDON DARBY

Overview
  • Total Patents
    20
About

HERBERT GORDON DARBY has a total of 20 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United Kingdom. Its main competitors in its focus markets thermal processes, consumer goods and furniture and games are CHENGDU CHIFFO ELECTRONICS CO LTD, CHINABEST HOME APPLIANCE CO LTD and BELL GEORGE GILBERT.

Patent filings in countries

World map showing HERBERT GORDON DARBYs patent filings in countries
# Country Total Patents
#1 United Kingdom 20

Patent filings per year

Chart showing HERBERT GORDON DARBYs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB563592A Improvements in washboilers
GB563189A Improvements relating to heating stoves
GB561655A Improvements in water-heaters
GB564123A Improvements in chimneys
GB562136A Improvements in gas cooking stoves
GB523619A Improvements in heating appliances
GB519202A Improvements in water and like heaters
GB508634A Improvements in heating apparatus
GB502945A Improvements in heating apparatus
GB517045A Improvements in domestic hot water supply apparatus
GB499650A Improvements in gas or electric fires
GB469601A Improvements in apparatus for heating water or other liquids
GB490691A Improvements in machines for wringing, or washing and wringing clothes
GB481684A Improvements in or relating to ignition devices for gas heated appliances
GB469193A Improvements in water heaters
GB466359A Improvements in water heating apparatus
GB454941A Improvements in water-heating apparatus
GB433951A Improvements in or relating to domestic ovens or the like
GB409994A Improvements in or relating to washing boilers or the like
GB356938A Improvements in water heating apparatus for domestic supply