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PONT AMMONIA CORP DU

Overview
  • Total Patents
    29
About

PONT AMMONIA CORP DU has a total of 29 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets materials and metallurgy, environmental technology and chemical engineering are GASVERARBEITUNGSGESELLSCHAFT M, GONG JIAZHU and GEORGES COUTAGNE.

Patent filings in countries

World map showing PONT AMMONIA CORP DUs patent filings in countries
# Country Total Patents
#1 United States 23
#2 United Kingdom 2
#3 Canada 1
#4 Switzerland 1
#5 Germany 1
#6 France 1

Patent filings per year

Chart showing PONT AMMONIA CORP DUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roger Williams 9
#2 Larson Alfred T 5
#3 Beekley John S 3
#4 Markus Larsson 2
#5 Ammonia Corporation Du Pont 1
#6 Dew Walter A 1
#7 Woodhouse John C 1
#8 Varnes Samuel K 1
#9 Blake Frank C 1
#10 Georges Patart 1

Latest patents

Publication Filing date Title
GB365945A Improvements in the recovery of sulphuric acid from the acid sludge of oil refineries
US1821195A Gas purification
US1809291A Apparatus for effecting synthesis
GB344576A Process and apparatus for catalytic gaseous reactions
US1797726A Method of producing phosphoric acid and hydrogen
US1799452A Process of producing hydrogen
US1809978A Process of producing hydrogen
US1797426A Manufacture of hydrogen
US1826974A Process of producing hydrogen
US1830010A Process of producing hydrogen
US1756934A Process of producing hydrogen
US1746506A Process for the preparation of phosgene
US1820417A Method of effecting catalytic reactions
US1833188A Method of conducting catalytic exothermic gaseous reactions
US1771130A Ammonia synthesis process
US1834116A Process of producing hydrogen
US1837254A Process of producing hydrogen
US1789538A Process of producing hydrogen from steam and carbon monoxide
US1834115A Process of producing hydrogen
US1736065A Process of producing hydrogen