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THOMAS EWAN

Overview
  • Total Patents
    11
About

THOMAS EWAN has a total of 11 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets surface technology and coating, materials and metallurgy and environmental technology are CANADIAN COPPER REFINERS LTD, FRITZ HANSGIRG and KELLY MICHAEL T.

Patent filings in countries

World map showing THOMAS EWANs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 United States 3

Patent filings per year

Chart showing THOMAS EWANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Thomas Ewan 3

Latest patents

Publication Filing date Title
GB416475A Improved process for treating cyanide solutions
GB314163A Improvements in the production of carbon
GB316898A Improvements in effecting gaseous dehydrating reactions
GB305816A Improvements in catalyst for the production of hydrocyanic acid
US1570467A Manufacture of alkali-metal amides
US1538390A Treatment of alkali-metal amalgams, especially for the production of alkali metals
US1538389A Manufacture of alkali metals
GB222718A Improvements in and relating to the manufacture of alkali metal amides
GB218606A Improvements in and relating to the manufacture of alkali metals
GB218563A Improvements in and relating to the manufacture of alkali metals
GB218373A Improvements in the manufacture of sodium