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RAVENSBERG G M B H CHEM FAB

Overview
  • Total Patents
    34
About

RAVENSBERG G M B H CHEM FAB has a total of 34 patent applications. Its first patent ever was published in 1953. It filed its patents most often in Germany, Spain and United Kingdom. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and macromolecular chemistry and polymers are BIOFINE INC, RECH S ET TECH APPLIQUEES and ZHANGJIAGANG WEISHENG BIOLOG MEDICAL CO LTD.

Patent filings in countries

World map showing RAVENSBERG G M B H CHEM FABs patent filings in countries
# Country Total Patents
#1 Germany 26
#2 Spain 3
#3 United Kingdom 2
#4 Canada 1
#5 France 1
#6 Greece 1

Patent filings per year

Chart showing RAVENSBERG G M B H CHEM FABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Siemer Dr Harm 13
#2 Doppstadt Dr Adolf 7
#3 Kasparek Dr Hermann 6
#4 Stach Dr Kurt 5
#5 Siemer Dr Rer Nat Harm 3
#6 Pfroepffer Klaus 3
#7 Kurzen Dipl-Chem Dr Phil Fritz 2
#8 Siemer Harm 2
#9 Kurzen Dr Fritz 2
#10 Doppstatt Adolf 1

Latest patents

Publication Filing date Title
ES395877A1 Procedure for the manufacture of a salt that acts pharmacologically as anti-solution and solvent of the flema. (Machine-translation by Google Translate, not legally binding)
ES375007A1 Procedure for the obtaining of acid salts of addition, microbicides and fungicides, of n4, n4'-decametilen-bisaminoquinaldina. (Machine-translation by Google Translate, not legally binding)
GB1237484A Salt of dibutylnaphthalene-disulphonic acid
ES255621A3 Procedure for the preparation of cyanures of alpine aminoalcohibencilo (Machine-translation by Google Translate, not legally binding)
GB883220A Improvements in or relating to morpholine derivatives
CA669801A Substituted 1-phenyl-2,3-dimethyl-4-morpholino methyl pyrazo-lone-(5) compounds and process of making same