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VULCAN CHEMICAL COMPANY LTD

Overview
  • Total Patents
    13
About

VULCAN CHEMICAL COMPANY LTD has a total of 13 patent applications. Its first patent ever was published in 1948. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets organic fine chemistry, materials and metallurgy and basic materials chemistry are TIRTOWIDJOJO MAX M, CHEMPATENTS INC and BATALIN OLEG E.

Patent filings in countries

World map showing VULCAN CHEMICAL COMPANY LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 10
#2 United States 2
#3 Canada 1

Patent filings per year

Chart showing VULCAN CHEMICAL COMPANY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Milner David William 6
#2 Holdsworth Ernest Clifford 3
#3 Clifford Holdsworth Ernest 2
#4 William Milner David 2
#5 Milner David W 1
#6 Worth Ernest Clifford Holds 1
#7 Clapham Peter Henry 1
#8 Holdsworth Ernest C 1

Latest patents

Publication Filing date Title
GB747781A An improved herbicidal composition
GB727715A Improvements in the manufacture of phenols
US2807641A Sulphonation of benzene
GB747659A Improvements in and relating to the sulphonation of benzene and to the extraction ofgaseous sulphur trioxide
GB680985A Improvements in and relating to the causticisation of sodium sulphite
GB708925A Separation of phenols by fractional distillation
GB695479A Process for the production of indole
US2607801A Preparation of salts of benzene sulfonic acid
GB676109A Improvements in and relating to the manufacture of phenols
GB656319A Improvements in or relating to the preparation of salts of sulphonic acids
GB675193A Improvements in and relating to the treatment of sodium sulphite
GB654786A Improvements in and relating to the manufacture of phenol
CA587504A Sulphonation of benzene and to the extraction of gaseous sulphur trioxide