Patents by Inventor Hansgeorg Ernst

Hansgeorg Ernst 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).

  • Microbial succinic acid producers and purification of succinic acid
    Patent number: 9932612
    Abstract: The present invention relates to bacterial strains, capable of utilizing glycerol as a carbon source for the fermentative production of succinic acid, wherein said strains are genetically modified so that they comprise a deregulation of their endogenous pyruvate-formate-lyase enzyme activity, as well as to methods of producing organic acids, in particular succinic acid, by making use of such microorganism. The present invention also relates to the downstream processing of the produced organic acids by cation exchange chromatography.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: April 3, 2018
    Assignee: BASF SE
    Inventors: Hartwig Schröder, Stefan Haefner, Gregory Von Abendroth, Rajan Hollmann, Aline Raddatz, Hansgeorg Ernst, Hans Gurski
  • Process for the preparation of (3E, 7E)-homofarnesol
    Patent number: 9758500
    Abstract: The present invention relates to new types of processes for the improved preparation of homofarnesol, in particular of (3E,7E)-homofarnesol and homofarnesol preparations with an increased content of (3E,7E)-homofarnesol (also referred to as all E-homofarnesol).
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 12, 2017
    Assignee: BASF SE
    Inventors: Melanie Weingarten, Hansgeorg Ernst, Wolfgang Siegel, Ekkehard Winterfeldt, Reinhard W. Hoffmann
  • PROCESS FOR THE PREPARATION OF (3E, 7E)-HOMOFARNESOL
    Publication number: 20170029396
    Abstract: The present invention relates to new types of processes for the improved preparation of homofarnesol, in particular of (3E,7E)-homofarnesol and homofarnesol preparations with an increased content of (3E,7E)-homofarnesol (also referred to as all E-homofarnesol).
    Type: Application
    Filed: October 12, 2016
    Publication date: February 2, 2017
    Inventors: Melanie WEINGARTEN, Hansgeorg ERNST, Wolfgang SIEGEL, Ekkehard Winterfeldt, Reinhard HOFFMAN
  • Process for the preparation of (3E, 7E)-homofarnesol
    Patent number: 9493385
    Abstract: The present invention relates to new types of processes for the improved preparation of homofarnesol, in particular of (3E,7E)-homofarnesol and homofarnesol preparations with an increased content of (3E,7E)-homofarnesol (also referred to as all E-homofarnesol).
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: November 15, 2016
    Assignee: BASF SE
    Inventors: Melanie Weingarten, Hansgeorg Ernst, Wolfgang Siegel, Ekkehard Winterfeldt, Reinhard W. Hoffmann
  • PROCESS FOR THE PREPARATION OF (3E, 7E)-HOMOFARNESOL
    Publication number: 20160200648
    Abstract: The present invention relates to new types of processes for the improved preparation of homofarnesol, in particular of (3E,7E)-homofarnesol and homofarnesol preparations with an increased content of (3E,7E)-homofarnesol (also referred to as all E-homofarnesol).
    Type: Application
    Filed: July 21, 2015
    Publication date: July 14, 2016
    Inventors: Melanie Bonnekessel-Weingarten, Hansgeorg Ernst, Wolfgang Siegel, Ekkehard Winterfeldt, Reinhard W. Hoffmann
  • Novel Microbial Succinic Acid Producers and Purification of Succinic Acid
    Publication number: 20150197776
    Abstract: The present invention relates to bacterial strains, capable of utilizing glycerol as a carbon source for the fermentative production of succinic acid, wherein said strains are genetically modified so that they comprise a deregulation of their endogenous pyruvate-formate-lyase enzyme activity, as well as to methods of producing organic acids, in particular succinic acid, by making use of such microorganism. The present invention also relates to the downstream processing of the produced organic acids by cation exchange chromatography.
    Type: Application
    Filed: April 1, 2015
    Publication date: July 16, 2015
    Applicant: BASF SE
    Inventors: Hartwig Schröder, Stefan Haefner, Gregory Von Abendroth, Rajan Hollmann, Aline Raddatz, Hansgeorg Ernst, Hans Gurski
  • Process for the preparation of oxovinylionol and its O-protected derivatives
    Patent number: 9061982
    Abstract: The present invention relates to the preparation of oxovinylionol and its O-protected derivatives of the formula I in which R is hydrogen or an OH protecting group, for example a group Si(Ra)3, by reacting a compound of the general formula II in which R has the meanings given above for formula I, i.e. ?-vinyl ionol (formula II, R=hydrogen) or an O-protected derivative thereof (formula II, R?OH protecting group) with an oxidant in the presence of at least one transition metal, where the oxidant comprises at least one oxygen-containing compound which is selected from among hydrogen peroxide and organic hydroperoxides.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 23, 2015
    Assignee: BASF SE
    Inventors: Hansgeorg Ernst, Michael Puhl, Stefan Benson, Wolfgang Siegel
  • Microbial succinic acid producers and purification of succinic acid
    Patent number: 9023632
    Abstract: The present invention relates to bacterial strains, capable of utilizing glycerol as a carbon source for the fermentative production of succinic acid, wherein said strains are genetically modified so that they comprise a deregulation of their endogenous pyruvate-formate-lyase enzyme activity, as well as to methods of producing organic acids, in particular succinic acid, by making use of such microorganism. The present invention also relates to the downstream processing of the produced organic acids by cation exchange chromatography.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: May 5, 2015
    Assignee: BASF SE
    Inventors: Hartwig Schröder, Stefan Haefner, Gregory Von Abendroth, Rajan Hollmann, Aline Raddatz, Hansgeorg Ernst, Hans Gurski
  • PROCESS OF PRODUCING BLEACH BOOSTERS
    Publication number: 20140288309
    Abstract: This invention relates to a process of producing compounds, which are useful as bleach boosters, as well as to the compounds, which are obtainable using said process, and to their use.
    Type: Application
    Filed: June 9, 2014
    Publication date: September 25, 2014
    Applicant: BASF SE
    Inventors: Karin Schein, Arno Kochner, Ludwig Völkel, Christian Bittner, Ingo Münster, Frank Dietsche, Wolfgang Schrof, Hansgeorg Ernst, Karl Beck, Andrea Misske, Martin Scholtissek
  • Novel Microbial Succinic Acid Producers and Purification of Succinic Acid
    Publication number: 20140127764
    Abstract: The present invention relates to bacterial strains, capable of utilizing glycerol as a carbon source for the fermentative production of succinic acid, wherein said strains are genetically modified so that they comprise a deregulation of their endogenous pyruvate-formate-lyase enzyme activity, as well as to methods of producing organic acids, in particular succinic acid, by making use of such microorganism. The present invention also relates to the downstream processing of the produced organic acids by cation exchange chromatography.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 8, 2014
    Applicant: BASF SE
    Inventors: Hartwig Schröder, Stefan Haefner, Gregory Von Abendroth, Rajan Hollmann, Aline Raddatz, Hansgeorg Ernst, Hans Gurski
  • Microbial succinic acid producers and purification of succinic acid
    Patent number: 8673598
    Abstract: The present invention relates to bacterial strains, capable of utilizing glycerol as a carbon source for the fermentative production of succinic acid, wherein said strains are genetically modified so that they comprise a deregulation of their endogenous pyruvate-formate-lyase enzyme activity, as well as to methods of producing organic acids, in particular succinic acid, by making use of such microorganism. The present invention also relates to the downstream processing of the produced organic acids by cation exchange chromatography.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: March 18, 2014
    Assignee: BASF SE
    Inventors: Hartwig Schroder, Stefan Haefner, Gregory Von Abendroth, Rajan Hollmann, Aline Raddatz, Hansgeorg Ernst, Hans Gurski
  • Process for the Preparation of (3E, 7E)-Homofarnesol
    Publication number: 20130273619
    Abstract: The present invention relates to new types of processes for the improved preparation of homofarnesol, in particular of (3E,7E)-homofarnesol and homofarnesol preparations with an increased content of (3E,7E)-homofarnesol (also referred to as all E-homofarnesol).
    Type: Application
    Filed: April 16, 2013
    Publication date: October 17, 2013
    Applicant: BASF SE
    Inventors: Melanie Bonnekessel, Hansgeorg Ernst, Wolfgang Siegel, Ekkehard Winterfeldt, Reinhard W. Hoffmann
  • Method for producing astaxanthin dimethyldisuccinate
    Patent number: 8492579
    Abstract: The present invention relates to an improved method for producing all-E astaxanthin dimethyldisuccinate of the formula I.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: July 23, 2013
    Assignee: BASF SE
    Inventors: Hansgeorg Ernst, Walter Dobler, Andreas Keller, Klaus Henrich
  • Novel Microbial Succinic Acid Producers and Purification of Succinic Acid
    Publication number: 20110300589
    Abstract: The present invention relates to bacterial strains, capable of utilizing glycerol as a carbon source for the fermentative production of succinic acid, wherein said strains are genetically modified so that they comprise a deregulation of their endogenous pyruvate-formate-lyase enzyme activity, as well as to methods of producing organic acids, in particular succinic acid, by making use of such microorganism. The present invention also relates to the downstream processing of the produced organic acids by cation exchange chromatography.
    Type: Application
    Filed: February 12, 2010
    Publication date: December 8, 2011
    Applicant: BASF SE
    Inventors: Hartwig Schroder, Stefan Haefner, Gregory Von Abendroth, Rajan Hollmann, Aline Raddatz, Hansgeorg Ernst, Hans Gurski
  • METHOD FOR PRODUCING ASTAXANTHIN DIMETHYLDISUCCINATE
    Publication number: 20110196170
    Abstract: The present invention relates to an improved method for producing all-E astaxanthin dimethyldisuccinate of the formula I.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 11, 2011
    Applicant: BASF SE
    Inventors: HANSGEORG ERNST, Walter Dobler, Andreas Keller, Klaus Henrich
  • METHOD FOR PRODUCING BISABOLOL WHICH IS FARNESOL FREE OR IS LOW IN FARNESOL
    Publication number: 20100222606
    Abstract: The present invention relates to a method of producing pure or enriched bisabolol by separating substance mixtures comprising bisabolol and farnesol by selective esterification of farnesol and subsequent distillative separation. The invention relates specifically to a method as specified above comprising the selective transesterification of mixtures comprising formyl-bisabolol and formyl-farnesol and subsequent distillative separation. The present invention furthermore relates to a method of producing farnesol esters.
    Type: Application
    Filed: January 12, 2007
    Publication date: September 2, 2010
    Applicant: BASF SE
    Inventors: Hansgeorg Ernst, Klaus-Peter Pfaff, Karl Beck, Jürgen Schubert, Günther Gottwald, Wolfgang Krause
  • METHOD FOR THE ENANTIOSELECTIVE PRODUCTION OF OPTICALLY ACTIVE 4-HYDROXY-2,6,6-TRIMETHYL-CYCLOHEX-2-ENONE DERIVATIVES
    Publication number: 20100041922
    Abstract: The present invention relates to a process for enantioselectively preparing optically active 4-hydroxy-2,6,6-trimethylcyclohex-2-en-1-one derivatives of the formulae (I) or (Ia) and to a process for preparing (3S,3?S)-astaxanthin of the formula (III), comprising the process for preparing the compound of the formula (I).
    Type: Application
    Filed: February 22, 2008
    Publication date: February 18, 2010
    Applicant: BASF SE
    Inventors: Rainer Stürmer, Hansgeorg Ernst
  • METHOD FOR THE PRODUCTION OF (4S)-3,4-DIHYDROXY-2,6,6-TRIMETHYL-CYCLOHEX-2-ENONE AND DERIVATIVES THEREOF
    Publication number: 20090325225
    Abstract: The present invention relates to a method for preparing optically active (4S)-4-hydroxy-2,6,6-trimethylcyclohex-2-en-1-one derivatives of the formula (I) and a method for preparing (3S,3?S)-astaxanthin of the formula (III) comprising the first-mentioned method.
    Type: Application
    Filed: November 9, 2007
    Publication date: December 31, 2009
    Applicant: BASF Aktiengesellschaft Patents, Trademarks and Licenses
    Inventors: Michael Breuer, Hansgeorg Ernst, Bernhard Hauer
  • Process of Producing Bleach Boosters
    Publication number: 20080200682
    Abstract: This invention relates to a process of producing compounds, which are useful as bleach boosters, as well as to the compounds, which are obtainable using said process, and to their use.
    Type: Application
    Filed: June 14, 2006
    Publication date: August 21, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Karin Schein, Arno Kochner, Ludwig Volkel, Christian Bittner, Ingo Munster, Frank Dietsche, Wolfgang Schrof, Hansgeorg Ernst, Karl Beck, Andrea Misske, Martin Scholtissek
  • Method for producing carotenoids
    Patent number: 7378558
    Abstract: A process for preparing carotenoids, in which the process includes reacting a dialkoxy dialdehyde in a double Wittig condensation with a phosphonium salt of or in a double Wittig-Horner condensation with a phosphonate. The carotenoids include, for example, ?-carotene, zeaxanthin, canthaxanthin, astaxathin, lycopene and croceptin, which are useful as nutraceuticals, food colorants, and feed additives.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: May 27, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Hansgeorg Ernst, Klaus Henrich, Andreas Keller