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DYE WORKS FORMERLY L DURAND HUGUENIN & CO

Overview
  • Total Patents
    18
About

DYE WORKS FORMERLY L DURAND HUGUENIN & CO has a total of 18 patent applications. Its first patent ever was published in 1900. 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 CASSELLA COLOR COMPANY, KRAUS WILHELM DR JUN and WESTMINSTER BANK LTD.

Patent filings in countries

World map showing DYE WORKS FORMERLY L DURAND HUGUENIN & COs patent filings in countries
# Country Total Patents
#1 United States 18

Patent filings per year

Chart showing DYE WORKS FORMERLY L DURAND HUGUENIN & COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Harpe Charles De La 12
#2 Burckhardt Rudolf 5
#3 Loretan Herman 4
#4 Bodmer Ernst 3
#5 Vaucher Charles 2
#6 Zehntner Ernst 2
#7 Barbezat Charles 1
#8 Oswald Karl 1
#9 Bierer Joseph 1

Latest patents

Publication Filing date Title
US1106185A Green mordant dyestuffs and process of making same.
US1055864A Yellow to red mordant dyestuffs and process of making same.
US1055885A Orange-red to bluish-red mordant dyestuffs and process of making same.
US1000899A Leuco dyestuffs of the gallocyanin series and process of making same.
US955040A Derivatives of gallocyanins and process of making.
US929350A Leuco derivatives of gallocyanin arylids, &c., and process of making same.
US898039A Gallocyanin dye and process of making same.
US898040A Gallocyanin and process of making same.
US898098A Condensation dye from gallocyanins and process of making same.
US943375A Process of vat-dyeing with gallocyanin dyestuffs.
US863907A Process of making leucogallocyanins.
US842303A Leuco products from gallic compounds and alkyl-diamido-arylthiosulfonic acids, &c.
US844155A Leuco derivatives of gallocyanins and aromatic amins and process of making same.
US844156A Greenish-blue dye and process of making same.
US663221A Leucogallocyanin-sulfonic acid and process of making same.
US663220A Gallocyanin-sulfonic acid and process of making same.
US662224A Gallocyanin sulfite dye and process of making same.
US898842A Gallocyanin dye and process of making same.