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SIEGLE & CO GES MIT BESCHRAENK

Overview
  • Total Patents
    25
About

SIEGLE & CO GES MIT BESCHRAENK has a total of 25 patent applications. Its first patent ever was published in 1934. It filed its patents most often in Germany, Switzerland and Austria. Its main competitors in its focus markets basic materials chemistry, materials and metallurgy and macromolecular chemistry and polymers are FELICE BENSA, HENGYUANXIANG GROUP CO LTD and CHEKALIN M A.

Patent filings in countries

World map showing SIEGLE & CO GES MIT BESCHRAENKs patent filings in countries
# Country Total Patents
#1 Germany 10
#2 Switzerland 7
#3 Austria 3
#4 United Kingdom 3
#5 Denmark 1
#6 Netherlands 1

Patent filings per year

Chart showing SIEGLE & CO GES MIT BESCHRAENKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heckl Dr Leonhard 4
#2 Hayer Dieter Dr 3
#3 Heckl Leonhard Dr 2
#4 Heinle Dr Kurt 2
#5 Heinle Dr Rer Nat Kurt 2
#6 Zeisberger Dr Robert 2
#7 Liedek Dr Egon 2
#8 Heinle Kurt Dr 2
#9 Mau Kurt 2
#10 Liedek Egon Dr 2

Latest patents

Publication Filing date Title
GB1025374A Colouring substance for lipsticks
DE1229214B Process for the production of azo pigment dyes
DE1227173B Process for the production of azo pigment dyes
DE1167307B Process for the purification of phthalocyanine raw products
DE1098124B Process for the preparation of water-insoluble disazo dyes
DE1146841B Process for the purification of phthalocyanine raw products
DE1046628B Process for the preparation of dialkali salts of 2-oxynaphthalene-1-carboxylic acid
DE1125100B Process for the preparation of stable metal phthalocyanines
DE943789C Process for the preparation of a non-crystallizing copper phthalocyanine
DE969219C Process for the production of red lead which does not thicken or settle
DE972015C Process for stabilizing crystallizing copper phthalocyanine and metal-free phthalocyanine
GB438358A Process for the extraction of noble metals by leaching out with cyanide
GB438402A Improvements in and relating to the production of ammonium cyanide