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YORKSHIRE CHEMICALS LTD

Overview
  • Total Patents
    132
About

YORKSHIRE CHEMICALS LTD has a total of 132 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United Kingdom, Germany and Australia. Its main competitors in its focus markets basic materials chemistry, textiles and paper and macromolecular chemistry and polymers are DYSTAR TEXTILFARBEN GMBH AND C, SOUTHERN DYESTUFF CORP and XIAO COUNTY KAIQI CHEMICAL TECH CO LTD.

Patent filings in countries

World map showing YORKSHIRE CHEMICALS LTDs patent filings in countries

Patent filings per year

Chart showing YORKSHIRE CHEMICALS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bramham Keith 12
#2 Dawson John Frederic 10
#3 Jackson Malcolm Stewart 6
#4 Wild Malcolm Stuart 3
#5 Blackburn David 2
#6 Teale Eric 2
#7 O'Driscoll Cavan Hugh 2
#8 Mortimer Keith 2
#9 Varley John Howard 2
#10 Dawson John Frederick 2

Latest patents

Publication Filing date Title
GB8816498D0 Azo dyes
GB8700984D0 Abrasive medium mill
GB8301601D0 Disperse azo dyes
GB2110388A Improvements relating to electrical controls for lifts, hoists and the like
EP0066405A2 Process for the production of water-soluble powders or concentrated solutions of cationic dyes
GB2115433A Monazo disperse dyes
GB2115432A Process for the production of water-soluble powders or concentrated solutions of cationic dyes
GB2107342A Styryl disperse dyes
GB2108141A Mixtures of disperse azo dyes
GB2105361A Azo disperse dyes and processes for their preparation
GB2104088A Blue monoazo disperse dyes
GB2104909A Azo disperse dyes
GB2095272A Disperse disazo dyestuffs
GB2091751A Azo disperse dyes
GB2091752A Monoazo disperse dyes
GB2088890A Blue disazo disperse dyes
GB2079303A Monoazo disperse dyes containing 1 3 4 thiadiazole residues
GB2041388A Sulphited polyoxyethylene esters
GB2067584A Monoazo disperse dyes
GB2037819A Disperse dye compositions