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SOUTH METROPOLITAN GAS CO

Overview
  • Total Patents
    207
About

SOUTH METROPOLITAN GAS CO has a total of 207 patent applications. Its first patent ever was published in 1911. It filed its patents most often in United Kingdom, France and Germany. Its main competitors in its focus markets thermal processes, materials and metallurgy and basic materials chemistry are ZHEJIANG MEIDA IND CO LTD, GEORGE HELPS and CALORIC CORP.

Patent filings in countries

World map showing SOUTH METROPOLITAN GAS COs patent filings in countries
# Country Total Patents
#1 United Kingdom 189
#2 France 10
#3 Germany 3
#4 United States 3
#5 Ireland 2

Patent filings per year

Chart showing SOUTH METROPOLITAN GAS COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Pickard Herbert 2
#2 Parrish Percy 2
#3 Hughes Charles Morland Cunyngh 1
#4 Hughes Charles Mobland Cunyngh 1
#5 William Kirby 1
#6 Valon William Argentine Mc Int 1
#7 Dean Chandler 1
#8 Evans Edward Victor 1

Latest patents

Publication Filing date Title
GB645582A Domestic gas appliance
GB638788A Domestic gas appliance
GB612387A A device for automatically cutting off a gas supply
GB608116A Improvements relating to gas fire burners
GB607985A Improvements relating to gas meters
GB602696A Improvements relating to gas fires
GB598738A New device for water heating
GB576816A Improvements in or relating to gas fires
GB567537A Improvements in or relating to gas fires
GB567027A Improvements in or relating to grates
GB561035A Improvements in or relating to coal burning grates
GB560390A Manufacture of a coal tar paint
GB559003A Manufacturing of water-proofing and binding material from coal tar
GB557766A An improvement in the purification of anthracene
GB550402A Improvements in the preparation of clays
GB538148A Improvements relating to gas cookers
GB534263A Improvements relating to rubber tubes
GB537189A Improvements relating to gas cookers
GB569035A Improvements in the production of toluene from crude benzole
GB529954A Improvements in or relating to grates