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Thomas Schaefer
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Buettelborn, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process and apparatus for preparing alkyl esters of methacrylic acid
Patent number
9,637,574
Issue date
May 2, 2017
Evonik Rohm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Reactor for preparing hydrogen cyanide by the Andrussow process
Patent number
8,802,020
Issue date
Aug 12, 2014
Evonik Rohm GmbH
Thomas Schaefer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing methacrylic alkyl esters by way of azeotropic...
Patent number
8,586,779
Issue date
Nov 19, 2013
Evonik Rohm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing acetone cyanohydrin and the subsequent product...
Patent number
8,334,399
Issue date
Dec 18, 2012
Evonik Rohm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the adsorptive purification of alkyl methacrylates
Patent number
8,324,424
Issue date
Dec 4, 2012
Evonik Rohm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production by distillation of acetone cyanhydrin and method for pro...
Patent number
8,143,434
Issue date
Mar 27, 2012
Evonik Rohm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing cyanohydrins and their use in the preparation...
Patent number
8,129,559
Issue date
Mar 6, 2012
Evonik Rohm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydrogen cyanide synthesis process
Patent number
6,979,432
Issue date
Dec 27, 2005
Roehm GmbH & Co KG
Thomas Schaefer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Hydrogen cyanide synthesis process
Patent number
6,743,407
Issue date
Jun 1, 2004
Roehm GmbH & Co KG
Thomas Schaefer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Hydrogen cyanide synthesis process
Patent number
6,596,251
Issue date
Jul 22, 2003
Roehm GmbH & Co KG
Thomas Schaefer
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
REACTOR FOR PREPARING HYDROGEN CYANIDE BY THE ANDRUSSOW PROCESS
Publication number
20110171101
Publication date
Jul 14, 2011
Evonik Roehm GmbH
Thomas Schaefer
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PRODUCING HYDROCYANIC ACID (HCN)
Publication number
20100086468
Publication date
Apr 8, 2010
Evonik Roehm GmbH
Thomas Schaefer
C01 - INORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR PREPARING CYANOHYDRINS AND THEIR USE IN THE PREPARATION...
Publication number
20100076214
Publication date
Mar 25, 2010
Evonik Roehm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PRODUCTION BY DISTILLATION OF ACETONE CYANHYDRIN AND METHOD FOR PRO...
Publication number
20100069594
Publication date
Mar 18, 2010
Evonik Roehm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Application
INTEGRATED PROCESS AND APPARATUS FOR PREPARING ESTERS OF METHACRYLI...
Publication number
20100069662
Publication date
Mar 18, 2010
Evonik Roehm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS AND APPARATUS FOR PREPARING ALKYL ESTERS OF METHACRYLIC ACID
Publication number
20100056742
Publication date
Mar 4, 2010
Evonik Roehm GmbH
Udo Gropp
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING METHACRYLIC ALKYL ESTERS BY WAY OF AZEOTROPIC...
Publication number
20100029881
Publication date
Feb 4, 2010
Evonik Roehm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR THE ADSORPTIVE PURIFICATION OF ALKYL METHACRYLATES
Publication number
20100004417
Publication date
Jan 7, 2010
Evonik Roehm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PRODUCING ACETONE CYANHYDRIN AND THE SUBSEQUENT PRODUCTS...
Publication number
20090299023
Publication date
Dec 3, 2009
Evonik Roehm GmbH
Udo Gropp
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Hydrogen cyanide synthesis process
Publication number
20040208814
Publication date
Oct 21, 2004
ROEHM GMBH & CO. KG
Thomas Schaefer
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Hydrogen cyanide synthesis process
Publication number
20020054848
Publication date
May 9, 2002
ROEHM GMBH & CO. KG
Thomas Schaefer
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Hydrogen cyanids synthesis process
Publication number
20020048544
Publication date
Apr 25, 2002
ROEHM GMBH & CO. KG
Thomas Schaefer
C01 - INORGANIC CHEMISTRY