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HEYDEN CHEM FAB

Overview
  • Total Patents
    762
About

HEYDEN CHEM FAB has a total of 762 patent applications. Its first patent ever was published in 1902. It filed its patents most often in Germany, Switzerland and France. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and chemical engineering are SHANGHAI INST ORGANIC CHEMISTRY CAS, DIPHARMA FRANCIS SRL and KONINKLIJKE PHARMA FAB NV.

Patent filings in countries

World map showing HEYDEN CHEM FABs patent filings in countries
# Country Total Patents
#1 Germany 418
#2 Switzerland 111
#3 France 66
#4 United Kingdom 45
#5 United States 45
#6 Austria 29
#7 Denmark 24
#8 Spain 13
#9 Canada 4
#10 Netherlands 3
#11 Finland 2
#12 Belgium 1
#13 Norway 1

Patent filings per year

Chart showing HEYDEN CHEM FABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heyden Aktiengesellschaft Chem 106
#2 Breuer Hermann Dr 38
#3 Hoehn Hans Dr 32
#4 Haack Dr Erich 28
#5 Gebauer Dr Rudolf 26
#6 Denzel Theodor Dr 26
#7 Philipp Dr Curt 22
#8 Mueller Dr Richard 18
#9 Treuner Uwe D Dr 18
#10 Zellmann Dr Rudolf 16

Latest patents

Publication Filing date Title
DE2800496A1 RADIONUCLID GENERATOR
DE2749745A1 NITROFURANTOIN RETARD PREPARATION FOR ORAL DETECTION AND METHOD FOR ITS MANUFACTURING
DE2539413A1 Antibacterial dithio-carbonyl-thio acyl cephalosporins - prepd. e.g. by reacting haloacyl cephalosporins with trithio-carbonate ester salts
DE2501094A1 Cephalosporin acylthiomethyl esters - prepd. by reacting cephalosporins or reactive derivs. with acylthiomethyl alcohols or halides
DE2453305A1 NEW HYDRAZINES, HYDRAZIDES AND HYDRAZONES OF PYRAZOLO (3,4-B) PYRIDINE-6-CARBONIC ACIDS AND CARBONIC ACID ESTERS AND THEIR SALTS
DE2364994A1 NEW ANTIBACTERIAL CEPHALOSPORINE DERIVATIVES
DE2356684A1 4-Amino-pyrazolo(3,4-D)pyridine-5-carboxamides - with ataractic, analgesic and hypotensive activity
DE1943759A1 Catalyst for oxidation of o-xylene to phth- - alic anydride
DE1932869A1 Process for the production of a catalyst for the gas phase oxidation of naphthalene to naphthoquinone in addition to phthalic anhydride
DE1928049A1 Container for tablets or the like., Consisting of a sales box and a protective cover
DE1907193A1 Selective herbibicdal acyl-cyanamides
DE1795411A1 5-Nitrofuryl-1,2,4-oxadiazoles and processes for their preparation
DE1795410A1 Nitrofuryl-1,2,4-oxadiazines and processes for their preparation
CA933175A Halogenated aryloxyacetyl cyanamides
GB1247202A Halogenated aryloxyacetyl cyanamides and herbicidal compositions comprising them
DE1643797A1 New thionocarbamic acid esters and processes for their preparation
DE1670446A1 New isoindolobenzothiazolone derivative and process for its preparation
DE1543509A1 Process for the production of antimicrobially active nitrofuran derivatives
DE1670338A1 Process for the production of antimicrobially active nitrofuran derivatives
ES321607A1 Improvements introduced in the procedure for the manufacture of sulfonilic aril semicarbacides. (Machine-translation by Google Translate, not legally binding)