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LEOPOLD CASSELLA & CO

Overview
  • Total Patents
    33
About

LEOPOLD CASSELLA & CO has a total of 33 patent applications. Its first patent ever was published in 1886. It filed its patents most often in United States, Spain and Austria. Its main competitors in its focus markets organic fine chemistry, basic materials chemistry and textiles and paper are NEWPORT CHEMICAL CORP, ROBERT FRASER THOMSON and ULLMANN FRITZ.

Patent filings in countries

World map showing LEOPOLD CASSELLA & COs patent filings in countries
# Country Total Patents
#1 United States 18
#2 Spain 12
#3 Austria 2
#4 France 1

Patent filings per year

Chart showing LEOPOLD CASSELLA & COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Weinberg Arthur 10
#2 Herz Richard 5
#3 Kertesz Adolf 2
#4 Lange Otto 2
#5 Kalischer Georg 1
#6 Hoffmann Meinhard 1
#7 Engau Carl 1
#8 Breuninger Friedrich 1
#9 Klingemann Felix 1

Latest patents

Publication Filing date Title
US742189A Blue sulfur dye and process of making same.
US723154A Blue sulfur dye and process of making same.
US712747A Yellow sulfur dye and process of making same.
US714542A Orange-brown sulfur dye and process of making same.
US718181A Blue wool-dye and process of making same.
US709151A Blue sulfur dye and process of making same.
US709187A Yellow acridin dye and process of making same.
US703105A Blue wool-dye and process of making same.
US709186A Blue dye and process of making same.
US693633A Process of making blue sulfur dye.
US693653A Process of dyeing sulfur colors.
US693632A Blue sulfur dye and process of making same.
US711953A Process of dyeing acid colors.
US701435A Brown-violet sulfur dye and process of making same.
US660069A Process of dyeing sulfur colors.
US660058A Brown sulfur dye.
US660067A Brown sulfur dye and process of making same.
US678884A Process of producing blue sulfur dye.