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GROTEWOHL BOEHLEN VEB

Overview
  • Total Patents
    221
About

GROTEWOHL BOEHLEN VEB has a total of 221 patent applications. Its first patent ever was published in 1974. It filed its patents most often in German Democratic Republic, Germany and Hungary. Its main competitors in its focus markets basic materials chemistry, chemical engineering and environmental technology are SASOL TECH PTY LTD, NANJING YANCHANG REACTION TECH RESEARCH INSTITUTE CO LTD and D X SUNRAY OIL COMPANY.

Patent filings in countries

World map showing GROTEWOHL BOEHLEN VEBs patent filings in countries

Patent filings per year

Chart showing GROTEWOHL BOEHLEN VEBs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sommer Holm 46
#2 Kunze Peter 46
#3 John Heino 19
#4 Becker Karl 18
#5 Schulz Reiner 17
#6 Seiffert Wolfgang 16
#7 Gross Manfred 12
#8 Krumsdorf Thomas 12
#9 Bremer Dieter 12
#10 Spur Eberhard 12

Latest patents

Publication Filing date Title
DD295237A5 Apparatus for automatic sampling from a falling transmission
DD294496A5 Method for producing high-quality electrode coke
DD293804A5 Process for the fractionation of pure aromates from aromatic hydrocarbon mixtures
DD292013A5 Method for coal liquidation
DD292012A5 Method of pressure hydrogenation of coal
DD291568A5 Method for producing improved cationactive bitumene emulsions in breaking and remaining behavior
DD291572A5 Process for the production of brown coal tea pee by collecting distillation
DD291330A5 Process for breaking time regulation of nonionogenic and cationactive bitumene emulsions
DD291339A5 Method for the catalytic high pressure hydrogenation of medium surface dedicate fractions
DD291337A5 Method for the catalytic high pressure refraction of distillates
DD300267A7 Method for producing fuel components from high-speed carbochemical distillates
DD291336A5 Method for the catalytic stabilization of thermally instablic oils
DD291338A5 Method for the catalytic high pressure hydrogenation of hydrocarbon fractions
DD288557A5 Pull-off device for cutting rings of tube fittings
DD287983A5 Arrangement for recovery of smoke gas waste for boilers
DD285779A5 Process for the preparation of isopropanol
DD285726A5 Method for producing catalysts for the implementation of methanol and / or dimethyl ether to hydrocarbons
DD285778A5 Process for hydroisomerization of n-pentane
DD285727A5 PROCESS FOR PREPARING ALUMINUM-CONTAINING METAL SILICates WITH PENTASIL STRUCTURE
DD283216A5 Method for adjusting variable measuring swivels at acoustic measurements