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WALKER CHEMICAL CO LTD

Overview
  • Total Patents
    17
About

WALKER CHEMICAL CO LTD has a total of 17 patent applications. Its first patent ever was published in 1960. It filed its patents most often in Canada, Germany and Belgium. Its main competitors in its focus markets macromolecular chemistry and polymers, surface technology and coating and machines are DOW MITSUBISHI KASEI LTD, PRESIDIUM USA INC and HUNTSMAN ICI CHEM LLC.

Patent filings in countries

World map showing WALKER CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 Canada 3
#2 Germany 3
#3 Belgium 2
#4 Denmark 2
#5 France 2
#6 United Kingdom 2
#7 Sweden 2
#8 United States 1

Patent filings per year

Chart showing WALKER CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Apley Martin 8
#2 Alexander James R 3
#3 Alexander James Ranald 3
#4 Ranald Alexander James 3
#5 Apley M 2
#6 Alexander J 2
#7 Aubrey Redfarn Cyril 1
#8 Martin Apley 1
#9 Redfarn Cyril A 1
#10 Redfarn C 1

Latest patents

Publication Filing date Title
DE1545182A1 Process for the preparation of organophosphorus nitrile compounds
US3164556A Phosphonitrilic polymers and process for their preparation
GB925105A Improvements in the manufacture of resins
GB933720A Improvements in and relating to the production of polymeric substances
CA685383A Production of polymeric substances
CA688271A Manufacture of resins
CA693104A Production of polymeric substances