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BRITISH DYESTUFFS CORP LTD

Overview
  • Total Patents
    431
About

BRITISH DYESTUFFS CORP LTD has a total of 431 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and textiles and paper are GRASSELLI DYESTUFF CORP, GEN ANILINE WORKS INC and DAVID ALEXANDER WHYTE FAIRWEAT.

Patent filings in countries

World map showing BRITISH DYESTUFFS CORP LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 178
#2 United States 102
#3 France 89
#4 Germany 56
#5 Canada 4
#6 Austria 2

Patent filings per year

Chart showing BRITISH DYESTUFFS CORP LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 James Baddiley 28
#2 Baddiley James 24
#3 Arnold Shepherdson 15
#4 Shepherdson Arnold 15
#5 Herbert Saunders Kenneth 11
#6 Rainald Brightman 11
#7 Percy Chorley 11
#8 James Hailwood Anthony 8
#9 Hailwood Anthony James 7
#10 Mordecai Mendoza 7

Latest patents

Publication Filing date Title
US1766952A Intermediate derived from aminosulphones
US1821291A Manufacture of dyed products
US1821257A Manufacture of azo dyestuffs
US1785601A Manufacture of pyranthrone derivatives
US1757506A Manufacture of new secondary disazo dyes and their application
US1757505A Process of dyeing
US1841637A Azo dyestuffs
DE508694C Process for the preparation of triarylmethane dyes
US1772516A Process for preparing triarylmethane dyes
GB320742A Manufacture of solubilised vat dye and process of dyeing therewith
US1766951A Intermediate derived from aminosulphones
US1766950A Azo dyestuffs
GB321483A Azo dyes and their application
US1841622A Intermediates and dyes therefrom
US1832594A Black and grey vat dyes
US1777367A Manufacture of aerated waters, sparkling drinks and the like
US1777366A Manufacture of aerated waters, sparkling drinks, and the like
US1757504A Dyeing regenerated cellulose silk
DE543430C Process for the production of resin-like condensation products from phenols and formaldehyde (resols) in pure form
DE498444C Process for the production of Kuepen dyes of the benzanthrone series