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ORR S ZINC WHITE LTD

Overview
  • Total Patents
    15
About

ORR S ZINC WHITE LTD has a total of 15 patent applications. Its first patent ever was published in 1936. It filed its patents most often in United Kingdom, Germany and France. Its main competitors in its focus markets basic materials chemistry and materials and metallurgy are CHANGSHU HUANHONG CHEMICAL PIGMENT FACTORY, ZHEJIANG DEQING MULTI SINOX PIGMENT TECH CO LTD and FU JIANSHENG.

Patent filings in countries

World map showing ORR S ZINC WHITE LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 5
#2 Germany 3
#3 France 3
#4 United States 3
#5 Canada 1

Patent filings per year

Chart showing ORR S ZINC WHITE LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Herbert Mills 3
#2 Harold Ford 3
#3 Lederer Gerald 1
#4 Ireland William Edward 1
#5 Mills Herbert 1

Latest patents

Publication Filing date Title
GB820506A Improvements in or relating to the preparation of zinc monoxy chromates
DE809838C Process for the production of colored bodies
DE833534C Process for the production of a white calcium sulfate-zinc sulfide color powder
US2687972A Preparation of composite calcium sulfate-zinc sulfide pigments
DE804584C Process for the production of a colored body consisting of a mixture of calcium sulphate and zinc sulphide
US2687973A Preparation of calcium sulfatezinc sulfide pigments
US2687974A Preparation of calcium sulfate/zinc sulfide pigment
GB651819A Improvements in or relating to the manufacture of composite calcium sulphate/zinc sulphide pigments
GB651821A Washing of composite pigments
GB651820A Calcination of composite pigments
GB487857A Improvements in pigments
CA399040A Composite pigment