Learn more

AMSTERDAMSCHE CHININEFABRIEK N

Overview
  • Total Patents
    26
About

AMSTERDAMSCHE CHININEFABRIEK N has a total of 26 patent applications. Its first patent ever was published in 1940. It filed its patents most often in France, United Kingdom and Switzerland. Its main competitors in its focus markets organic fine chemistry, basic materials chemistry and pharmaceuticals are AGRIMONT SRL, TAVOLEK LABORATORIES and SINOCHEN CORP.

Patent filings in countries

World map showing AMSTERDAMSCHE CHININEFABRIEK Ns patent filings in countries
# Country Total Patents
#1 France 8
#2 United Kingdom 7
#3 Switzerland 4
#4 Germany 2
#5 Denmark 2
#6 United States 2
#7 Belgium 1

Patent filings per year

Chart showing AMSTERDAMSCHE CHININEFABRIEK Ns patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Amsterdamsche Chininefabriek N 4
#2 Haaye Veldstra 2
#3 Marie Akkerman Antony 1

Latest patents

Publication Filing date Title
GB736388A Novel derivatives of methylene bis-(hydroxy-4-coumarin)-3,3
GB730045A Processes for the manufacture of 2-(indoly(3) methyl-)-piperidines and of intermediate products employed in their preparation
GB718230A Process for the preparation of new oxytocically active compounds and preparations
US2668857A Process for the preparation of beta-dimethyl-aminoethyl-benzhydryl ether
GB679803A Improvements in or relating to processes for the preparation of ª‰-dimethyl-aminoethyl-benzhydryl ether
GB682823A Manufacture of 3:3-carbalkoxy-methylene-bis-(4-hydroxy-coumarins)
GB665419A Process for the manufacture of derivatives of 3:3-methylene-bis-(4-oxycoumarin)
US2639983A Growth promoting preparations for plants