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STEINKOHLENBERGW RHEINPREUSSEN

Overview
  • Total Patents
    82
About

STEINKOHLENBERGW RHEINPREUSSEN has a total of 82 patent applications. Its first patent ever was published in 1937. It filed its patents most often in Germany, France and Spain. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and chemical engineering are SUN RESEARCH DEVELOPMENT, SUN RESEARCH DEV CO and LABOFINA SA.

Patent filings in countries

World map showing STEINKOHLENBERGW RHEINPREUSSENs patent filings in countries
# Country Total Patents
#1 Germany 63
#2 France 11
#3 Spain 4
#4 Canada 3
#5 Switzerland 1

Patent filings per year

Chart showing STEINKOHLENBERGW RHEINPREUSSENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Koelbel Herbert Dr 28
#2 Grimme Walter Dr 18
#3 Ullmann Dietrich Dr 10
#4 Josten Friedrich Dr 9
#5 Ackermann Paul Dr 6
#6 Kolbel Herbert 6
#7 Ruschenburg Ernst Dr 4
#8 Schmitz Heinrich Dr 3
#9 Woellner Johannes Dr 3
#10 Wiedmann Helmut Dipl-Chem Dr-I 3

Latest patents

Publication Filing date Title
ES204777A2 A process of catalytic hydrogenation of carbon oxide (Machine-translation by Google Translate, not legally binding)
ES204619A2 A process of catalytic hydrogenation of carbon oxide (Machine-translation by Google Translate, not legally binding)
DE839643C Process for the purification of p-aminosalicylic acid
DE854486C Rock dust barrier
DE832008C Ceramic terminal block for installation in high-voltage cable connection sleeves protected from firedamp
DE854487C Rock dust barrier
DE849683C Rock dust barrier
DE833354C Process for the purification of p-aminosalicylic acid
DE833844C Limit switch for electrical conveyor equipment, such as reel in blind shafts, and procedure for its restart
DE809437C Process for the production of zinc oxide catalysts
DE837926C Process for finishing wood fiber boards
DE853354C Process for the production of organic aluminum compounds with a plastic character from aluminum alcoholates and anhydrides of dicarboxylic acids
DE846097C Process for the preparation and purification of esters of 4-amino-2-oxy-benzoic acid
DE842944C Process for the preparation of esters of oxyaminobenzoic acids with N-substituted amino alcohols
DE850232C Process for the production of light-colored, easily soluble synthetic resins by condensation of ketones with aldehydes
DE854849C Process for the production of petrol and oil-soluble light-resistant synthetic resins
DE851097C Process for the production of a water-repellent binder for fibrous materials
DE851096C Process for the production of a water-repellent binder for fibrous materials
DE800406C Process for the production of the purest acetic alumina with a low acetate content or the corresponding aluminum salts of their water-soluble homologues
DE800407C Process for the separation of the nitrocarboxylic acid-fatty acid mixtures obtained in the fatty acid nitration