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FIRM OF CHEMICAL WORKS FORMERL

Overview
  • Total Patents
    27
About

FIRM OF CHEMICAL WORKS FORMERL has a total of 27 patent applications. Its first patent ever was published in 1927. It filed its patents most often in United States. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and textiles and paper are CHEM FAB, PROD CHIM CI DEVANT SANDOZ FAB and PROD CHIM FAB DE.

Patent filings in countries

World map showing FIRM OF CHEMICAL WORKS FORMERLs patent filings in countries
# Country Total Patents
#1 United States 27

Patent filings per year

Chart showing FIRM OF CHEMICAL WORKS FORMERLs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heinrich Lier 6
#2 Walter Wehrli 4
#3 Arthur Stoll 3
#4 Valentin Kartaschoff 3
#5 Alfred Rheiner 3
#6 Ernst Gutzwiller 2
#7 Ernst Rothlin 2
#8 Walter Kreis 2
#9 Jakob Link 1
#10 Albin Peter 1

Latest patents

Publication Filing date Title
US2192085A Manufacture of pyridinium compounds
US2180809A Basic condensation products and a process for their manufacture
US2144556A Monoazo dyestuffs and a process for their manufacture
US2157294A Mercerizing lyes and a process for their manufacture
US2152248A Trihexosan-carboxylic acid salts and process of making same
US2160448A Metal azo dyestuffs and a process for their manufacture
US2080209A Azo-dyestuff
US2103804A Azo dyestuffs and process for their manufacture
US2044400A Sulphonation of oils or their fatty acids
US2076197A Sulphonated arylamino anthraquinone dyestuffs and process for their manufacture
US2008796A Anthraquinone dyestuffs and process for their manufacture
US2134456A Manufacture of water-soluble calcium compounds
US1888186A Complex glucosaminic acid salts of the metals of the iron group
US1989989A Process for the manufacture of new sulphurized derivatives of phenols
US2017607A Insulated electrical conductor
US1923490A Manufacture of alpha new crystallized product from digitalis
US1904257A Supersaturated calcium gluconate solution
US1889831A Manufacture of anthraquinone derivatives
US1725652A Process of extracting the cardio-active substance of bulbous scillae
US1824671A Treatment of cotton and artificial silk