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FARBENFABRIKEN OF ELBERFELD COMPANY

Overview
  • Total Patents
    31
About

FARBENFABRIKEN OF ELBERFELD COMPANY has a total of 31 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United States. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and machines are NANTONG ZHENGYAN PIGMENT CHEMICAL CO LTD, TIANJIN DEKAI CHEMICAL CO LTD and SCOTTISH DYES LTD.

Patent filings in countries

World map showing FARBENFABRIKEN OF ELBERFELD COMPANYs patent filings in countries
# Country Total Patents
#1 United States 31

Patent filings per year

Chart showing FARBENFABRIKEN OF ELBERFELD COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schmidt Robert E 8
#2 Kothe Richard 7
#3 Israel Adolf 7
#4 Bammann Johann 4
#5 Vorster Walter 3
#6 Davidis Ernst 3
#7 Heymann Bernhard 2
#8 Ott Philipp 2
#9 Bonhoeffer Otto 2
#10 Tust Paul 2

Latest patents

Publication Filing date Title
US658897A Blue trisazo dye.
US662122A Blue-red azo dye and process of making same.
US663498A Orange azo dye and process of making same.
US666702A Anthraquinone dye and process of making same.
US656621A Azo dyestuff and method of making same.
US656620A Blue-red substantive dye.
US653678A Thio-urea compound and process of making same.
US656646A Urea derivative of amidonaphthol sulfonic acid and method of making same.
US649714A Dinaphthylamin sulfo derivative and process of making same.
US647260A Blue diphenylnaphthylmethane dye.
US647263A Ester of acetylphenylglycinortho carbonic acid.
US648623A Blue trisazo dye.
US658507A Brown azo dye and process of making same.
US656619A Blue tetrazo dye and process of making same.
US653670A Olive cotton-dye and process of making same.
US656435A Propionyl-salicylic acid and process of making same.
US659202A Methylpropylcarbinolurethane and method of making same.
US658506A Brown dye and process of making same.
US658504A Blue diphenylnaphthylmethane dye and process of making same.
US657539A Monoacetyl-indoxyl and process of making same.