Patents by Inventor Frank Dübner

Frank Dübner 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).

  • L-lysine containing feed additives
    Patent number: 9023347
    Abstract: The invention relates to relatively light and thermally stable granulated, fermentation-broth-based animal feed additives having a high content of L-lysine and to low-loss methods for their production from broths obtained by fermentation.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 5, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Hermann Lotter, Ulrich Becker, Frank Dübner, Friederike Kaeppke, Joachim Pohlisch, Ralf Kelle, Cory M. Sander, Lawrence Edward Fosdick
  • L-Lysine-containing feed additives
    Publication number: 20140302202
    Abstract: The invention relates to relatively light and thermally stable granulated, fermentation-broth-based animal feed additives having a high content of L-lysine and to low-loss methods for their production from broths obtained by fermentation.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 9, 2014
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Hermann LOTTER, Ulrich BECKER, Frank DÜBNER, Friederike KAEPPKE, Joachim POHLISCH, Ralf KELLE, Cory M. SANDER
  • L-lysine-containing feed additives
    Patent number: 8802400
    Abstract: The invention relates to relatively light and thermally stable granulated, fermentation-broth-based animal feed additives having a high content of L-lysine and to low-loss methods for their production from broths obtained by fermentation.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: August 12, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Hermann Lotter, Ulrich Becker, Frank Dübner, Friederike Kaeppke, Joachim Pohlisch, Ralf Kelle, Cory M. Sander, Lawrence Edward Fosdick
  • L-LYSINE-CONTAINING FEED ADDITIVES
    Publication number: 20100310714
    Abstract: The invention relates to relatively light and thermally stable granulated, fermentation-broth-based animal feed additives having a high content of L-lysine and to low-loss methods for their production from broths obtained by fermentation.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 9, 2010
    Inventors: Hermann LOTTER, Ulrich Becker, Frank Dübner, Friederike Kaeppke, Joachim Pohlisch, Ralf Kelle, Cory M. Sander, Lawrence Edward Fosdick
  • Method for preparing 3-(methylthio)propanal
    Patent number: 7119233
    Abstract: A method for preparing 3-(methylthio)propanal and 2-hydroxy-4-(methylthio)butanenitrile by catalyzed addition of methylmercaptan to acrolein and hydrogen cyanide to 3-(methylthio)propanal.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: October 10, 2006
    Assignee: Degussa AG
    Inventors: Frank Dübner, Christoph Weckbecker
  • Copper-catalyzed enantioselective allylic substitution reactions
    Patent number: 6610871
    Abstract: An allylic compound is reacted with an organozinc compound Zn(R6)2 to eliminate a group (the leaving group) from the allylic compound and to add a group from the organozinc compound to it in the presence of a copper salt catalyst and a chiral organic ligand for the copper. A novel ferrocenyl compound and a novel copper complex of the ferrocenyl compound and copper are also described.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: August 26, 2003
    Assignee: Avecia Limited
    Inventors: Frank Duebner, Paul Knochel