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DU PONT POWDER CO

Overview
  • Total Patents
    233
About

DU PONT POWDER CO has a total of 233 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets basic materials chemistry, machines and organic fine chemistry are OSKAR MATTER, WESTF ANHALTISCHE SPRENGSTOFF and TROJAN POWDER CO.

Patent filings in countries

World map showing DU PONT POWDER COs patent filings in countries
# Country Total Patents
#1 United States 213
#2 Canada 19
#3 France 1

Patent filings per year

Chart showing DU PONT POWDER COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Holmes Fletcher B 22
#2 Sparre Fin 20
#3 Pont Francis I Du 19
#4 Masland Walter E 14
#5 Chesney John 8
#6 Peacock Samuel 8
#7 Sokolowski Ernst 7
#8 Hibbert Harold 7
#9 Stowe Floyd D 6
#10 Stillwell Howard A 6

Latest patents

Publication Filing date Title
US1269439A Process of producing aromatic hydrocarbons.
US1269339A Process of producing artificial leather.
US1267785A Method of producing pyroxylin-coated fabrics.
US1266073A Pyroxylin composition.
US1259339A Coating-machine.
US1257756A Process for producing artificial leather.
US1257665A Process of producing artificial leather.
US1247610A Process of producing artificial leather.
US1234921A Pyroxylin composition.
US1271132A Paper-shell machine and mandrel for same.
US1229467A Cartridge-loading machine.
US1161063A Process of colloiding carbohydrate esters and product thereof.
US1218616A Process of recovering solvents.
CA162322A Retort heating apparatus
CA166805A Pyroxylin compound
CA183501A Explosive drying process
US1177006A Machine for coating.
US1197167A Process of concentrating nitric acid.
CA167714A Solvent recovering apparatus
US1131361A Process of making granular nitrate of ammonia.