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FARBEN FABRIKEN OF ELBERFELD CO

Overview
  • Total Patents
    17
About

FARBEN FABRIKEN OF ELBERFELD CO has a total of 17 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and optics are FABRIQUE DE PRODUITS CHIMIQUES CI-DEVANT SANDOZ, SAMUEL COFFEY and CHEM FAB ROHNER A G PRATTELN.

Patent filings in countries

World map showing FARBEN FABRIKEN OF ELBERFELD COs patent filings in countries
# Country Total Patents
#1 United States 17

Patent filings per year

Chart showing FARBEN FABRIKEN OF ELBERFELD COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Herzberg Martin 5
#2 Schmidt Robert E 5
#3 Berendes Rudolf 1
#4 Eichengruen Arthur 1
#5 Wolman Ludwig 1
#6 Runkel Friedrich 1
#7 Callsen Juergen 1
#8 Demuth Robert 1
#9 Hofmann Fritz 1

Latest patents

Publication Filing date Title
US826750A Green anthracene dye.
US822370A Pharmaceutical compound.
US797731A Black azo dye.
US797732A Black azo dye.
US792034A Azo dye.
US792033A Black azo dye.
US792032A Blue-black azo dye.
US785123A Green anthraquinone dye.
US785122A Green-blue anthraquinone dye.
US785121A Greenish-blue anthraquinone dye.
US772857A Trioxyanthraquinone dye.
US780741A Sensitizing-dye.
US765164A Meta-tolylsemicarbazid.
US716396A Process of developing photographic pictures.
US677279A Basic dye and process of making same.
US675572A Blue anthraquinone dye and process of making same.
US673388A Blue cotton dye and process of making same.