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DONAU CHEMIE AG

Overview
  • Total Patents
    125
About

DONAU CHEMIE AG has a total of 125 patent applications. Its first patent ever was published in 1939. It filed its patents most often in Austria, France and Germany. Its main competitors in its focus markets organic fine chemistry, materials and metallurgy and chemical engineering are MERKEL DANIEL C, GEORGE FREDERICK HORSLEY and QIANJIANG YONGAN PHARMACEUTICAL CO LTD.

Patent filings per year

Chart showing DONAU CHEMIE AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fruhwirth Otto Dr 17
#2 Chemie Aktiengesellschaft Dona 9
#3 Fruhwirth Dr Otto 6
#4 Freissmuth Alfred 5
#5 Marchhart Helmut 4
#6 Samhaber Friedrich Dipl Ing Dr 3
#7 Samhaber Friedrich Dr 3
#8 Zimmermann Johann Ing 3
#9 Zimmermann Johann 3
#10 Hoellriegl Heinrich Dr 2

Latest patents

Publication Filing date Title
SI23231A2 Composition for discolouration or for prevention of colouration of concentrated sulphuric acid
ATA10802003A Means for dehumidification of metal melts
ATA59695A Method for recycling active charcoal loaded with organic compounds
ATA229994A Agent for treating raw iron and cast iron melt for the purpose of desulfuration
HRP940349A2 Agent for desulphurization, dephosphorization, desiliconization and denitrification of molten pig or cast iron of molten ferrochrome or ferromanganese as well as a process
SI9400253A Means and procedure for removing sulphur, phosphorus, silicon and nitrogen from melt of crude iron, casting, ferrochromium and ferromanganese
HU9401731D0 Agent and method for desulfuring, dephosphoring, desiliconing, denitrogening pig-iron-, cast-iron-, ferrochrome-, ferromanganese- melts
CZ141894A3 Preparation for desulfurizing, phosphor, silicon and nitrogen removal from pig iron, cast iron, ferrochromium and ferromanganese liquid alloy and process for treating such liquid alloy
ATA115194A Desulfuring agent for body iron and cast iron melting
SK69994A3 Agent for removal of contaminants from melts and treatment method of these melts
ATA93292A Process for producing gypsum plaster mouldings
ATA230186A Method of processing chloride-rich flue gas desulphurization material (FGD material) to produce cement clinker
ATA447378A Method for increasing the ph value of molded bodies made of chemical plaster
ATA447478A Method for improving the drying properties of plaster molded bodies
ZA7506437B A device for gastight closure of the inner tube of the hollow electrode of an electrothermal smelting furnace
GB1435184A Metling apparatus
US3382163A Method of electrolytic extraction of metals
GB963601A Method of purifying liquids
GB667118A Process for removing paraffin wax from mineral oils
GB653993A Process of producing silicic acid from alkali silicates