Patents by Inventor Ralf Kelle

Ralf Kelle 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).

  • Branched-chain fatty acids as liquid cation exchangers
    Patent number: 9919303
    Abstract: The present invention relates to a method for removing an organic compound from an aqueous solution, comprising the steps of providing the aqueous solution which contains the organic compound, and a hydrophobic organic solution, where the latter comprises a liquid hydrophobic cation exchanger, contacting the aqueous solution and the hydrophobic organic solution, and separating off the hydrophobic organic solution from the aqueous solution, wherein the liquid hydrophobic cation exchanger is a saturated alkanoic acid having at least one alkyl substituent, where the organic compound is an organic compound having at least one positive charge and a neutral or positive total charge.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: March 20, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Frank Erhardt, Lukas Falke, Ralf Kelle, Harald Haeger, Thomas Haas, Hans-Georg Hennemann, Oliver Thum, Martin Roos, Markus Poetter
  • BRANCHED-CHAIN FATTY ACIDS AS LIQUID CATION EXCHANGERS
    Publication number: 20150209775
    Abstract: The present invention relates to a method for removing an organic compound from an aqueous solution, comprising the steps of providing the aqueous solution which contains the organic compound, and a hydrophobic organic solution, where the latter comprises a liquid hydrophobic cation exchanger, contacting the aqueous solution and the hydrophobic organic solution, and separating off the hydrophobic organic solution from the aqueous solution, wherein the liquid hydrophobic cation exchanger is a saturated alkanoic acid having at least one alkyl substituent, where the organic compound is an organic compound having at least one positive charge and a neutral or positive total charge.
    Type: Application
    Filed: July 24, 2013
    Publication date: July 30, 2015
    Applicant: Evonik Industries AG
    Inventors: Frank Erhardt, Lukas Falke, Ralf Kelle, Harald Haeger, Thomas Haas, Hans-Georg Hennemann, Oliver Thum, Martin Roos, Markus Poetter
  • 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
  • Feedstuffs additives containing L-lysine with improved abrasion resistance, and process for their prodiction
    Publication number: 20080131566
    Abstract: The invention relates to a shaped, in particular granulated, feedstuffs additive containing L-lysine and treated with additives, preferably oils. The feedstuffs additive has improved abrasion resistance and optionally contains constituents from the fermentation broth and biomass. The invention is also directed to a process for the production of this product.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 5, 2008
    Applicant: Degussa AG
    Inventors: Frank Dubner, Christoph Weckbecker, Hermann Lotter, Joachim Pohlisch, Friederike Kappke, Ralf Kelle, Paul Caldwell, Lee F. Kalivoda
  • L-lysine-containing feed additives
    Publication number: 20070082031
    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: March 13, 2006
    Publication date: April 12, 2007
    Inventors: Hermann Lotter, Ulrich Becker, Frank Dubner, Friederike Kaeppke, Joachim Pohlisch, Ralf Kelle, Cory Sander, Lawrence Fosdick
  • Feesdstuffs additives containing L-lysine with improved abrasion resistance, and process for their production
    Publication number: 20040115304
    Abstract: The invention relates to a shaped, in particular granulated feedstuffs additive containing L-lysine and treated with additives, preferably oils, having improved abrasion resistance, which optionally contains constituents from the fermentation broth and biomass, and a process for the production of this product.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 17, 2004
    Inventors: Frank Dubner, Christoph Weckbecker, Hermann Lotter, Joachim Pohlisch, Friederike Kappke, Ralf Kelle, Paul Caldwell, Lee F. Kalivoda