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TWITCHELL ERNST

Overview
  • Total Patents
    18
About

TWITCHELL ERNST has a total of 18 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United States, Spain and Austria. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and machines are DREW ERNEST F, PETER SIEGFRIED and MITTELBACH MARTIN.

Patent filings in countries

World map showing TWITCHELL ERNSTs patent filings in countries
# Country Total Patents
#1 United States 5
#2 Spain 3
#3 Austria 2
#4 Canada 2
#5 Switzerland 2
#6 Denmark 2
#7 United Kingdom 2

Patent filings per year

Chart showing TWITCHELL ERNSTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Twitchell Ernst 15

Latest patents

Publication Filing date Title
GB191309160A Improved Process of Treating Fats and Oils in the Manufacture of Fatty Acids and Glycerine.
CA149092A Manufacture of fatty acids and glycerine
US1082662A Process of manufacturing fatty acids and glycerin.
US1170468A Sulfo-fatty-aromatic acid salt.
US918612A Process of separating liquid from solid fatty acids.
GB190625747A Process of Effecting a Combination between Selected Members of the Alcohols and Fatty Acids.
US844426A Process of effecting a combination between selected members of the alcohols and fatty acid.
CA63120A Process for separating fats or oils into fatty acids and glycerine
US628503A Fatty aromatic sulfo compound and process of making same.