Patents by Inventor Steffen Schaffer

Steffen Schaffer 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: 8980594
    Abstract: The invention relates to the use of a protein homologous to a MeaB protein for increasing the enzymatic activity of a 3-hydroxycarboxylic acid-CoA mutase, a fusion protein comprising a 3-hydroxycarboxylic acid-CoA mutase and a protein sequence homologous to a MeaB protein and an enzymatic method for producing 2-hydroxyisobutryric acid.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: March 17, 2015
    Assignee: Evonik Roehm GmbH
    Inventors: Liv Reinecke, Steffen Schaffer, Tim Koehler, Anja Thiessenhusen, Achim Marx, Markus Buchhaupt
  • Publication number: 20150056659
    Abstract: The invention relates to cells, nucleic acids, and enzymes, the use thereof for producing sophorolipids, and methods for producing sophorolipids.
    Type: Application
    Filed: September 16, 2014
    Publication date: February 26, 2015
    Applicant: Evonik Degussa GmbH
    Inventors: Steffen SCHAFFER, Mirja Wessel, Anja Thiessenhusen
  • Publication number: 20150056660
    Abstract: The invention relates to cells, nucleic acids, and enzymes, the use thereof for producing sophorolipids, and methods for producing sophorolipids.
    Type: Application
    Filed: September 16, 2014
    Publication date: February 26, 2015
    Applicant: Evonik Degussa GmbH
    Inventors: Steffen SCHAFFER, Mirja Wessel, Anja Thiessenhusen
  • Publication number: 20150056658
    Abstract: The invention relates to cells, nucleic acids, and enzymes, the use thereof for producing sophorolipids, and methods for producing sophorolipids.
    Type: Application
    Filed: September 16, 2014
    Publication date: February 26, 2015
    Applicant: Evonik Degussa GmbH
    Inventors: Steffen SCHAFFER, Mirja Wessel, Anja Thiessenhusen
  • Publication number: 20150056661
    Abstract: The invention relates to cells, nucleic acids, and enzymes, the use thereof for producing sophorolipids, and methods for producing sophorolipids.
    Type: Application
    Filed: September 16, 2014
    Publication date: February 26, 2015
    Applicant: Evonik Degussa GmbH
    Inventors: Steffen SCHAFFER, Mirja Wessel, Anja Thiessenhusen
  • Patent number: 8911982
    Abstract: The invention relates to cells, nucleic acids, and enzymes, the use thereof for producing sophorolipids, and methods for producing sophorolipids.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: December 16, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Steffen Schaffer, Mirja Wessel, Anja Thiessenhusen
  • Publication number: 20140308717
    Abstract: The present invention relates to a method comprising the steps a) providing a secondary alcohol, b) oxidizing the secondary alcohol by contacting it with an NAD(P)+-dependent alcohol dehydrogenase and c) contacting the oxidation product of step a) with a transaminase, wherein the NAD(P)+-dependent alcohol dehydrogenase and/or the transaminase is a recombinant or isolated enzyme, to a whole cell catalyst for carrying out the method, and to the use of such a whole cell catalyst for oxidizing a secondary alcohol.
    Type: Application
    Filed: July 27, 2012
    Publication date: October 16, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Thomas Haas, Markus Poetter, Jan Christoph Pfeffer, Wolfgang Kroutil, Arne Skerra, Alexandra Lerchner, Katharina Christin Tauber, Johann H. Sattler, Steffen Schaffer
  • Publication number: 20140296125
    Abstract: The invention relates to detergent formulations for textiles, comprising rhamnolipids, where the content of di-rhamnolipids predominates, and to the use of certain rhamnolipid mixture compositions and of the aforementioned detergent formulations for increasing the rate of foam formation and/or for foam stabilization, and to the use of rhamnolipids for preventing the greying of a textile.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 2, 2014
    Applicant: EVONIK INDUSTRIES AG
    Inventors: Dirk Kuppert, Ulrike Kottke, Juergen Lattich, Magdalena Volk, Hans Henning Wenk, Fabien Cabirol, Martin Schilling, Steffen Schaffer, Petra Allef
  • Publication number: 20140296168
    Abstract: The invention relates to a mixture composition comprising rhamnolipids, to a process for its preparation, to its use for producing formulations and to formulations comprising this mixture composition.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 2, 2014
    Applicant: Evonik Industries AG
    Inventors: Martin Schilling, Christian Hartung, Fabien Cabirol, Steffen Schaffer, Petra Allef
  • Publication number: 20140256904
    Abstract: The subject of the invention is a biotechnological process for the production of ?-functionalized carboxylic acids and of ?-functionalized carboxylate esters from simple carbon sources.
    Type: Application
    Filed: August 15, 2012
    Publication date: September 11, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Steffen Schaffer, Nicole Decker, Jasmin Gielen, Harald Haeger, Thomas Haas, Markus Poetter, Hans-Georg Hennemann, Mirja Wessel, Michael Volland
  • Publication number: 20140242646
    Abstract: The present invention relates to a method comprising the steps a) providing a primary alcohol of the formula HO—(CH2)x—R1, wherein R1 is selected from the group consisting of —OH, —SH, —NH2 and —COOR2, x is at least 3 and R2 is selected from the group consisting of H, alkyl and aryl, b) oxidizing the primary alcohol by contacting it with an NAD(P)+-dependent alcohol dehydrogenase, and c) contacting the oxidation product of step a) with a transaminase, wherein the NAD(P)+-alcohol dehydrogenase and/or the transaminase is a recombinant or isolated enzyme, to a whole cell catalyst for carrying out the method, and to the use of such a whole cell catalyst for oxidizing a primary alcohol.
    Type: Application
    Filed: July 17, 2012
    Publication date: August 28, 2014
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Markus Pötter, Thomas Haas, Jan Christoph Pfeffer, Arne Skerra, Wolfgang Kroutil, Alexandra Lerchner, Johann H. Sattler, Steffen Schaffer, Katharina Christin Tauber
  • Publication number: 20140199736
    Abstract: The invention relates to genetically modified Pichia ciferrii cells, to the use thereof and to a method of producing sphingoid bases and sphingolipids.
    Type: Application
    Filed: July 23, 2012
    Publication date: July 17, 2014
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Tim Köhler, Christoph Schorsch, Eckhard Boles, Heiko Andrea, Mike Farwick, Steffen Schaffer
  • Publication number: 20140186905
    Abstract: Subject matter of the invention is a biotechnological process for the production of organic compounds with the aid of at least one alkL gene product.
    Type: Application
    Filed: August 15, 2012
    Publication date: July 3, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Steffen Schaffer, Jasmin Gielen, Nicole Decker, Nicole Kirchner, Thomas Haas, Markus Poetter, Harald Haeger
  • Publication number: 20140178948
    Abstract: The invention provides a whole cell catalyst which expresses a recombinant ?-dioxygenase or the combination of a recombinant fatty acid reductase and a phosphopantetheinyl transferase phosphopantetheinylating the fatty acid reductase, and which in addition to the ?-dioxygenase and/or the combination of fatty acid reductase and phosphopantetheinyl transferase expresses a transaminase, characterized in that the phosphopantetheinyl transferase and/or transaminase is preferably recombinant; and a method for the conversion of a fatty acid, ?-hydroxy fatty acid, ?-oxo fatty acid or a monoester thereof to an amine, comprising oxidation of the fatty acid, ?-hydroxy fatty acid, ?-oxo fatty acid or the monoester thereof to an oxidation product by contacting with an alkane hydroxylase and/or alcohol dehydrogenase, contacting the oxidation product with a phosphopantetheinylated fatty acid reductase or a ?-dioxygenase to give an aldehyde, and contacting the aldehyde with a transaminase.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 26, 2014
    Applicant: Evonik Industries AG
    Inventors: Steffen SCHAFFER, Jasmin Gielen, Mirja Wessel, Hans-Georg Hennemann, Harald Haeger, Thomas Haas, Wilfried Bluemke
  • Publication number: 20140141478
    Abstract: The invention provides a process for reacting a carboxylic acid ester of the formula (I) R1-A-COOR2 ??(I), wherein R1 is hydrogen, —CH2OH, —CHO, —COOR3, —CH2SH, —CH2OR3 or —CH2NH2, R2 is an alkyl group,R3 is hydrogen or an alkyl group, and A is a substituted, unsubstituted, linear, branched and/or cyclic alkylene, alkenylene, arylene or aralkylene radical having at least 4 carbons,in the presence of a cell. The process comprises a) contacting the cell with said carboxylic acid ester in an aqueous solution,wherein the cell is a recombinant cell which has reduced activity of a polypeptide comprising SEQ ID NO: 2 or a variant thereof over the wild-type cell.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 22, 2014
    Applicant: Evonik Industries AG
    Inventors: Steffen SCHAFFER, Heiko Andrea, Mirja Wessel, Hans-Georg Hennemann, Harald Haeger
  • Publication number: 20130183725
    Abstract: The invention relates to genetically engineered Candida tropicalis cells, use thereof and a method of production of ?-hydroxycarboxylic acids and ?-hydroxycarboxylic acid esters.
    Type: Application
    Filed: February 12, 2013
    Publication date: July 18, 2013
    Inventors: MARKUS POETTER, HANS-GEORG HENNEMANN, STEFFEN SCHAFFER, THOMAS HAAS
  • Publication number: 20130164797
    Abstract: A process for the improved separation of a hydrophobic organic solution from an aqueous culture medium is provided. The process includes preparing an aqueous culture medium of a metabolically active cell having a decreased activity; contacting of the aqueous culture medium with a hydrophobic organic solution comprising a substrate for biotransformation; conducting a biotransformation of the substrate; and separating the hydrophobic organic solution comprising a biotransformed substrate from the aqueous culture medium. The decreased activity of the metabolically active cell is in comparison to a wild-type of the active cell and the decreased activity is of at least of one enzyme that catalyses one reaction of ?-oxidation of fatty acids.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 27, 2013
    Inventors: Jasmin GIELEN, Thomas Haas, Hans-Georg Hennemann, Steffen Schaffer, Mirja Wessel, Katharina Berse, Marion Schiebelhut, Sabine Hafkemeyer, Markus Poetter, Frank Erhardt
  • Publication number: 20130130319
    Abstract: The invention relates to cells and nucleic acids and also use thereof for producing rhamnolipids, and also methods for producing rhamnolipids.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 23, 2013
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Steffen Schaffer, Mirja Wessel, Anja Thiessenhusen, Nadine Stein
  • Publication number: 20130052700
    Abstract: The invention provides a biocatalytic process for oxidation of organic compounds with the aid of an alkL gene product, and microorganisms used in this process.
    Type: Application
    Filed: March 15, 2011
    Publication date: February 28, 2013
    Inventors: Markus Poetter, Andreas Schmid, Bruno Buehler, Hans-Georg Hennemann, Mattijs Kamiel Julsing, Steffen Schaffer, Thomas Haas, Manfred Schrewe, Sjef Cornelissen, Martin Roos, Harald Haeger
  • Patent number: 8372595
    Abstract: The present invention provides genetically engineered microbial strains, in particular genetically engineered yeast strains, that produce at least 0.5 mg per g CDW of a sphingoid base according to Formula I or a salt or ester thereof. The present invention provides a method to obtain genetically engineered microbial strains producing at least 0.5 mg per g CDW of a sphingoid base according to Formula I or a salt or ester thereof.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: February 12, 2013
    Assignee: Evonik Industries AG
    Inventors: Steffen Schaffer, Marco Alexander Van Den Berg, Daniel Boergel, Thomas Hueller