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CHEMISCHE WERKE WITTEN

Overview
  • Total Patents
    22
About

CHEMISCHE WERKE WITTEN has a total of 22 patent applications. Its first patent ever was published in 1959. It filed its patents most often in Belgium, United Kingdom and United States. Its main competitors in its focus markets organic fine chemistry, macromolecular chemistry and polymers and chemical engineering are OTDEL I KHIM FIZ AKADEMII NAUK, MASATAKA AMAGASA and HONSHU CHEMICAL IND.

Patent filings in countries

World map showing CHEMISCHE WERKE WITTENs patent filings in countries
# Country Total Patents
#1 Belgium 7
#2 United Kingdom 6
#3 United States 6
#4 Netherlands 2
#5 Switzerland 1

Patent filings per year

Chart showing CHEMISCHE WERKE WITTENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ewald Katzschmann 2
#2 Rudolf Burichardt 1
#3 Schade Gerhard Dr 1
#4 Rudolf Burkhardt 1
#5 Willi Fett 1
#6 Blumenfeld Georg Dr 1
#7 Rudolf Junghaehnel 1

Latest patents

Publication Filing date Title
GB1205542A Process for the preparation of diphenyl terephthalate
US3135787A Process for producing pure sodium salts of 5-sulfo-isophthalic acid and 2-sulfoterephthalic acid
US3152055A Process for the production of aromatic chlorocarboxylic acid chlorides