Patents by Inventor Andreas Karau

Andreas Karau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9957536
    Abstract: The present invention relates to a hydantoinase having an amino acid sequence selected from (i) or (ii), with (i) amino acid sequence selected from SEQ ID NO: 6-20 and SEQ ID NO: 73-119 (ii) amino acid sequence wherein in the amino acid sequence of SEQ ID NO: 6-20 and SEQ ID NO: 73-119, 1 to 75 amino acid residues have been substituted, deleted, inserted and/or added, and wherein further the catalytic activity of the hydantoinase is higher by a factor of at least 1.2 than the catalytic activity of the hydantoinase having amino acid sequence SEQ ID NO: 1, The present invention further relates to a process for preparing amino acids, wherein said hydantoinase is used.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: May 1, 2018
    Assignee: Evonik Technochemie GmbH
    Inventors: Steffen Osswald, Heiko Schuster, Jurgen Roos, Andreas Karau, Ulrich Schwaneberg, Ronny Martinez, Hemanshu Mundhada, Ursula Holter
  • Patent number: 9879289
    Abstract: The present invention refers to a method for the preparation of 2-keto carboxylic acid having the general formula R1—CO—COOH, wherein R1 is a branched alkyl group having 3 to 7 carbon atoms, or a salt thereof, comprising a fermentation step wherein a microorganism is grown in a culture medium in order to provide a culture broth containing 2-keto carboxylic acid or a salt thereof.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: January 30, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Andreas Karau, Nicolas Morin, Robert Gerstmeir
  • Publication number: 20150174088
    Abstract: Food supplement containing alpha-keto acids for supporting diabetes therapy. The present invention relates to a formulation which is used as food supplement and contains alpha-keto acids for supporting therapy in diabetes mellitus type II (DM).
    Type: Application
    Filed: December 24, 2014
    Publication date: June 25, 2015
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Andreas KARAU, Henrike GEBHARDT, Norbert WINDHAB, Matthias KOTTENHAHN, Yuefei LIU, Juergen M. STEINACKER
  • Patent number: 9012227
    Abstract: The present invention relates to a cell, which has been genetically modified relative to its wild type, so that in comparison with its wild type it is able to produce more ?-aminocarboxylic acids, more ?-aminocarboxylic acid esters or more lactams derived from ?-aminocarboxylic acids, starting from carboxylic acids or carboxylic acid esters. Furthermore, the present invention relates to a method for the production of a genetically modified cell, the cells obtainable by this method, a method for the production of ?-aminocarboxylic acids, of ?-aminocarboxylic acid esters or of lactams derived from ?-aminocarboxylic acids, the ?-aminocarboxylic acids, ?-aminocarboxylic acid esters or lactams derived from ?-aminocarboxylic acids obtainable by this method, a method for the production of polyamides based on ?-aminocarboxylic acids or based on lactams and the polyamides obtainable by this method.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: April 21, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Andreas Karau, Volker Sieber, Thomas Haas, Harald Haeger, Katrin Grammann, Bruno Buehler, Lars Blank, Andreas Schmid, Guido Jach, Bernd Lalla, Andreas Mueller, Katrin Schullehner, Peter Welters, Thorsten Eggert, Andrea Weckbecker
  • Publication number: 20150056667
    Abstract: The present invention relates to a hydantoinase having an amino acid sequence selected from (i) or (ii), with (i) amino acid sequence selected from SEQ ID NO: 6-20 and SEQ ID NO: 73-119 (ii) amino acid sequence wherein in the amino acid sequence of SEQ ID NO: 6-20 and SEQ ID NO: 73-119, 1 to 75 amino acid residues have been substituted, deleted, inserted and/or added, and wherein further the catalytic activity of the hydantoinase is higher by a factor of at least 1.2 than the catalytic activity of the hydantoinase having amino acid sequence SEQ ID NO: 1, The present invention further relates to a process for preparing amino acids, wherein said hydantoinase is used.
    Type: Application
    Filed: November 16, 2012
    Publication date: February 26, 2015
    Inventors: Steffen Osswald, Heiko Schuster, Jürgen Roos, Andreas Karau, Ulrich Schwaneberg, Ronny Martinez, Hemanshu Mundhada, Ursula Holter
  • Patent number: 8318465
    Abstract: A process for integrated utilization of the energy and material contents of hydrolysates and solids obtained in the enzymatic hydrolysis of renewable raw materials, in which the resulting hydrolysis solution is used as a carbon source in fermentations and the unhydrolysed solids are sent to biogas production.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: November 27, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Murillo Villela Filho, Isabelle Schaarschmidt, Bernd Wahl, Elmar Rother, Hartmut Zimmermann, Andreas Karau
  • Publication number: 20120065428
    Abstract: The present invention refers to a method for the preparation of 2-keto carboxylic acid having the general formula R1—CO—COOH, wherein R1 is a branched alkyl group having 3 to 7 carbon atoms, or a salt thereof, comprising a fermentation step wherein a microorganism is grown in a culture medium in order to provide a culture broth containing 2-keto carboxylic acid or a salt thereof.
    Type: Application
    Filed: May 10, 2010
    Publication date: March 15, 2012
    Applicant: Evonik Degussa GmbH
    Inventors: Andreas Karau, Nicolas Morin, Robert Gerstmeir
  • Publication number: 20110039313
    Abstract: The invention relates to recombinant microorganisms in which polynucleotides which code for lysine decarboxylase are enhanced and, using which, cadaverine (1,5-diaminopentane) is produced fermentatively, with the carbon source used preferably being renewable raw materials such as, for example, glucose, sucrose, molasses and the like.
    Type: Application
    Filed: January 10, 2008
    Publication date: February 17, 2011
    Inventors: Stefan Verseck, Harald Haeger, Andreas Karau, Lothar Eggeling, Hermann Sahm
  • Publication number: 20100324257
    Abstract: The present invention relates to a cell, which has been genetically modified relative to its wild type, so that in comparison with its wild type it is able to produce more ?-aminocarboxylic acids, more ?-aminocarboxylic acid esters or more lactams derived from ?-aminocarboxylic acids, starting from carboxylic acids or carboxylic acid esters. Furthermore, the present invention relates to a method for the production of a genetically modified cell, the cells obtainable by this method, a method for the production of ?-aminocarboxylic acids, of ?-aminocarboxylic acid esters or of lactams derived from ?-aminocarboxylic acids, the ?-aminocarboxylic acids, ?-aminocarboxylic acid esters or lactams derived from ?-aminocarboxylic acids obtainable by this method, a method for the production of polyamides based on ?-aminocarboxylic acids or based on lactams and the polyamides obtainable by this method.
    Type: Application
    Filed: December 12, 2008
    Publication date: December 23, 2010
    Applicant: EVONIK DEGUSSA Gmbh
    Inventors: Andreas Karau, Volker Sieber, Thomas Haas, Harald Haeger, Katrin Grammann, Bruno Buehler, Lars Blank, Andreas Schmid, Guido Jach, Bernd Lalla, Andreas Mueller, Katrin Schullehner, Peter Welters, Thorsten Eggert, Andrea Weckbecker
  • Publication number: 20100280123
    Abstract: Food supplement containing alpha-keto acids for supporting diabetes therapy. The present invention relates to a formulation which is used as food supplement and contains alpha-keto acids for supporting therapy in diabetes mellitus type II (DM).
    Type: Application
    Filed: April 1, 2010
    Publication date: November 4, 2010
    Applicant: Evonik Degussa GmbH
    Inventors: Andreas KARAU, Henrike Gebhardt, Norbert Windhab, Matthias Kottenhahn, Yuefei Liu, Jürgen M. Steinacker
  • Publication number: 20090098598
    Abstract: A process for integrated utilization of the energy and material contents of hydrolysates and solids obtained in the enzymatic hydrolysis of renewable raw materials, in which the resulting hydrolysis solution is used as a carbon source in fermentations and the unhydrolysed solids are sent to biogas production.
    Type: Application
    Filed: April 11, 2008
    Publication date: April 16, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: MURILLO VILLELA FILHO, Isabelle Schaarschmidt, Bernd Wahl, Elmar Rother, Hartmut Zimmermann, Andreas Karau
  • Publication number: 20080274509
    Abstract: A sugar-containing hydrolyzate is produced from a lignocellulose-containing material by a) pretreating the lignocellulose-containing material with a chemical compound selected from sulphuric acid, alkali, peroxodisulphates, potassium peroxide, potassium hydroxide, and mixtures thereof, in the presence of water, thereby obtaining an aqueous phase, and b) after removing of the aqueous phase and washing the resulting product, treating said product with an enzyme suitable for hydrolysis in the presence of water, thereby obtaining a hydrolyzate, the hydrolyzate being suitable as a carbon source for fermentation.
    Type: Application
    Filed: April 25, 2008
    Publication date: November 6, 2008
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Murillo Villela Filho, Mirjam Mai, Andreas Karau
  • Publication number: 20050101813
    Abstract: A molecular weight-enlarged, homogeneously soluble ligand, useful in catalysts, particularly for the synthesis of enantiomerically enriched organic compounds, includes: a weight average molecular weight of at least 1000 g/mol; a molecular weight-enlarging polymer; optionally, a polymer linker; and at least one homochiral active center; wherein the active center is bound to the molecular weight-enlarging polymer through the polymer linker or is bound directly to the molecular weight-enlarging polymer.
    Type: Application
    Filed: September 8, 2003
    Publication date: May 12, 2005
    Applicant: Degussa AG,
    Inventors: Hans-Peter Krimmer, Jens Woeltinger, Olaf Burkhardt, Ingo Klement, Hans Henniges, Karlheinz Drauz, Andreas Bommarius, Jean-Louis Philippe, Andreas Karau
  • Publication number: 20040204606
    Abstract: The invention relates to the use of catalysts comprising the structures of general formulas (I), (II) or (III), for the asymmetric cleavage of anhydrides.
    Type: Application
    Filed: May 27, 2004
    Publication date: October 14, 2004
    Inventors: Jens Woltinger, Hans-Peter Krimmer, Dietmar Reichert, Juan Jose Almena Perea, Karlheinz Drauz, Andreas Karau
  • Publication number: 20040198591
    Abstract: The invention relates to catalysts for the enantioselective aldol or Mannich reaction. Said catalysts have an increased molecular weight by being bound to a polymer and as active units that enantioselectively catalyse the aldol or Mannich reaction comprise a compound of general formula (I). The invention also relates to a method for the production and use of said catalysts.
    Type: Application
    Filed: May 27, 2004
    Publication date: October 7, 2004
    Inventors: Jens Wltinger, Hans-Peter Krimmer, Andreas Karau
  • Patent number: 6759559
    Abstract: The first embodiment of the present invention provides a process, which includes: in a continuous process in a membrane reactor, asymmetrically hydrogenating at least one C═C, C═N or C═O double bond with a catalyst. Another embodiment of the present invention provides a ligand, which includes at least one di-1,3-aminophosphine homochiral active center; optionally, a linker; and a molecular weight-enlarging polymer; wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer; and wherein the linker is defined in the claims. Another embodiment of the present invention provides a process for preparing the above-noted ligand, and a catalyst that includes the above-noted ligand.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: July 6, 2004
    Assignees: Degussa AG, Forschungszentrum Juelich GmbH
    Inventors: Stephan Laue, Andreas Liese, Christian Wandrey, Olaf Burkhardt, Jens Woeltinger, Andreas Bommarius, Hans Henniges, Jean-Louis Philippe, Andreas Karau, Karlheinz Drauz
  • Patent number: 6624248
    Abstract: Molecular weight-enlarged, homogeneously soluble ligands are provided that are especially useful for hydrogenation catalysts, wherein the ligands contain homochiral active centers of bis(3,4-diarylphosphinyl)pyrrolidines, and their use in producing cataylsts for enantioselective reactions, as well as the catalysts thus produced.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: September 23, 2003
    Assignee: Degussa AG
    Inventors: Olaf Burkhardt, Jens Woltinger, Andreas Bommarius, Juan Jose Almena Perea, Hans Henniges, Karlheinz Drauz, Andreas Karau, Jean-Louis Philippe, Hans-Peter Krimmer, Gunther Oehme
  • Patent number: 6617480
    Abstract: The present invention relates to a molecular weight-enlarged, homogeneously soluble ligand, which includes: an average molecular weight of at least 1000 g/mol; a molecular weight-enlarging polymer; optionally, a linker; and at least one homochiral active center; wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer, methods of preparing, catalysts containing same, and methods of using same.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: September 9, 2003
    Assignee: Degussa AG
    Inventors: Hans-Peter Krimmer, Jens Woeltinger, Olaf Burkhardt, Ingo Klement, Hans Henniges, Karlheinz Drauz, Andreas Bommarius, Jean-Louis Philippe, Andreas Karau
  • Publication number: 20030159996
    Abstract: The present invention provides an adsorbent, that includes a pulverulent rubber, which contains at least one filler selected from the group including natural filler, synthetic filler, organic filler, inorganic filler, and mixtures thereof. Another embodiment of the invention relates to an article or apparatus selected from the group including a cushion, hose, suction boom, stationary bed column, suspension reactor, and fluidized bed reactor, that contain the above-noted adsorbent. Another embodiment of the invention provides a process, that includes adsorbing at least one organic compound with the above-noted adsorbent. The present invention is a readily usable and effective adsorbent, and has a high capacity, permits an efficient mass transport in the individual adsorbent particles, and has a resistance to fouling by adsorption of higher molecular weight substances or by swelling processes, and is resistant to being wetted by water and to coadsorption of water.
    Type: Application
    Filed: March 27, 2003
    Publication date: August 28, 2003
    Applicant: ADSOCA AG
    Inventors: Uwe Ernst, Udo Goerl, Martin Kuge, Andreas Karau, Reinhard Stober, Herbert Gerdau
  • Patent number: 6472571
    Abstract: Process for the production of organic compounds in a membrane reactor. Inorganic membranes composed of an inorganic backing layer and an inorganic interlayer are used in the membrane reactor. The inorganic interlayer may be modified with organic groups.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: October 29, 2002
    Assignee: Degussa-Huls AG
    Inventors: Andreas Karau, Jens Wöltinger, Olaf Burkhardt, Andreas Bommarius, Kai Boldt, Jean-Louis Philippe, Hans Henniges, Karlheinz Drauz