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PHARMA CHEMICAL CORP

Overview
  • Total Patents
    32
About

PHARMA CHEMICAL CORP has a total of 32 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States, Canada and Switzerland. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and macromolecular chemistry and polymers are HUNTSMAN ADVANCED MAT (SWITZERLAND) GMBH, KUHLMANN ETS and CIBA LTD.

Patent filings in countries

World map showing PHARMA CHEMICAL CORPs patent filings in countries
# Country Total Patents
#1 United States 17
#2 Canada 11
#3 Switzerland 1
#4 Germany 1
#5 France 1
#6 United Kingdom 1

Patent filings per year

Chart showing PHARMA CHEMICAL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Markush Eugene A 15
#2 Markush Eugene Armand 10
#3 Julius Miller 8
#4 Miller Julius 8
#5 Mayzner Mark S 7
#6 Malawista John J 3
#7 Cukier Michel F 2
#8 Markush Eugene Armand Dr Chem 1
#9 Pharma-Chemical Corporation 1
#10 Mayzner Mark Stanley 1

Latest patents

Publication Filing date Title
US2897186A Diazoamino dye intermediates
DE883023C Process for the production of water-insoluble metal-containing azo dyes
GB681385A Improvements in metalliferous azoic dyes
US2515758A Alkyd resins derived from cyclohexene oxide
US2491928A Metalliferous azoic dyes
US2256096A Polyazo compounds
US2250270A Coeroxane compounds
US2208678A Process for the production of dibenzylsulphanilic acid
US2149703A Azo dyes
US2164932A Diphenyl-diamino acid compounds
US2049216A Compounds suitable for dyeing and printing
US2113029A Dyeing
US2105326A Dye solution
US2074186A Insoluble azodyestuffs
US2055547A Tetrazoimino compounds
US1982681A Diazoimino compound produced from heterocyclic imines
US1986276A Dye producing composition
US2014143A Polyazo dye and process for producing the same
US1506316A Pyrazolone dye and process of making the same
CA403101A Stable diazo compound