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DAVID JOSEPH SMITH

Overview
  • Total Patents
    31
About

DAVID JOSEPH SMITH has a total of 31 patent applications. Its first patent ever was published in 1918. It filed its patents most often in France, Germany and United Kingdom. Its main competitors in its focus markets basic materials chemistry, chemical engineering and environmental technology are HARDT PIOTR, VER VERWERTUNG UND ENTSORGUNG and TOUILLET EDOUARD.

Patent filings in countries

World map showing DAVID JOSEPH SMITHs patent filings in countries
# Country Total Patents
#1 France 10
#2 Germany 9
#3 United Kingdom 8
#4 Switzerland 4

Patent filings per year

Chart showing DAVID JOSEPH SMITHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Smith David Joseph 10
#2 Joseph Smith David 4

Latest patents

Publication Filing date Title
GB549697A Improvements in or relating to furnaces fired with pulverized fuel
GB547256A Improvements in compression-ignition engines adapted for operation with solid and liquid fuels in combination
GB294373A Improvements in or relating to gas producers
GB240226A Improvements in gas producers particularly applicable for consuming vegetable fuels
GB151087A Improvements in and relating to producer gas plants and internal combustion engines supplied therefrom
GB150796A Improvements in and relating to gas producers for vehicles
GB145948A Improvements in furnace firebars
GB143353A Improvements in and relating to gas producers