Patents by Inventor Birgit Witteck

Birgit Witteck 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).

  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Patent number: 6913912
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the adk gene is/are enhanced, in particular over-expressed.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: July 5, 2005
    Assignee: Degussa AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20040259214
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the cysK gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: December 23, 2004
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping, Daniela Kruse
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030124682
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the fda gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: July 3, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030124681
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the pepB gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: July 3, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030119151
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the hns gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: June 26, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030109012
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the mdh gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: June 12, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030104583
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the bfr gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: June 5, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping, Daniela Kruse
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030100081
    Abstract: The invention relates to a process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the dldH gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: May 29, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030092138
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the pgm gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: May 15, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030087404
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the adk gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: May 8, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Mechthild Rieping
  • Process for the preparation of D-pantothenic acid and/or salts thereof
    Publication number: 20030064485
    Abstract: A process for the preparation of D-pantothenic acid and/or salts thereof or feedstuffs additives comprising these by fermentation of microorganisms of the Enterobacteriaceae family, in particular those which already produce D-pantothenic acid, in which the nucleotide sequence(s) in the microorganisms which code(s) for the aldH gene is/are enhanced, in particular over-expressed.
    Type: Application
    Filed: June 13, 2002
    Publication date: April 3, 2003
    Applicant: DEGUSSA AG
    Inventors: Thomas Hermann, Birgit Witteck, Metchthild Rieping