Learn more

DERIVES DE L ACETYLENE SOC IND

Overview
  • Total Patents
    41
About

DERIVES DE L ACETYLENE SOC IND has a total of 41 patent applications. Its first patent ever was published in 1931. It filed its patents most often in France, United States and Germany. Its main competitors in its focus markets organic fine chemistry, basic materials chemistry and chemical engineering are CASALE SACCHI MARIA, BRITISH HYDROCARBON CHEM LTD and ZHEJIANG XIESHI NEW MAT CO LTD.

Patent filings in countries

World map showing DERIVES DE L ACETYLENE SOC INDs patent filings in countries
# Country Total Patents
#1 France 23
#2 United States 6
#3 Germany 5
#4 United Kingdom 3
#5 Switzerland 2
#6 Belgium 1
#7 Canada 1

Patent filings per year

Chart showing DERIVES DE L ACETYLENE SOC INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Marcel Borrel 4
#2 Besson Paul 3
#3 Lichtenberger Robert 2
#4 Lucien Villemey 2
#5 Luiset Gilbert 2
#6 Galvin Andre 2
#7 Robert Lichtenberger 2
#8 Andre Galvin 1
#9 Lichtenberger Robert-Maurice 1
#10 Villemey Lucien 1

Latest patents

Publication Filing date Title
GB992418A Improvements in or relating to heat exchange systems
US2820812A Manufacture of acrylic nitrile
US2848495A Method of manufacture of amines
DE1122506B Process for obtaining pure methyl ethyl ketone
GB811500A Method for manufacturing methyl-ethyl-ketone
DE1013280B Process for the purification of crude acrylonitrile from the diene compounds which interfere with the polymerization
US2768941A Purification of acrylonitrile
US3002999A Manufacture of mesityl oxide
DE1058047B Process for the preparation of mesityl oxide or its homologues
GB758788A Production of polyols and ketones
US2739930A Method for the purification of acrylonitrile
DE1012909B Process for obtaining practically anhydrous acetone by distillation
US2855344A Distillation process to produce anhydrous acetone
CA694808A Procede de fabrication de dimethylhydrazine dissymetrique