Patents by Inventor Renate Uhlenberg

Renate Uhlenberg 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).

  • Preparation of ketals
    Patent number: 7390930
    Abstract: The invention relates to a process for ketalizing triacetonamine by reacting triacetonamine and a hydroxyl derivative, for example, a mono- or polyhydric alcohol, with gaseous hydrogen chloride to give an open-chain or cyclic ketal.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: June 24, 2008
    Assignee: Degussa AG
    Inventors: Oliver Meyer, Renate Uhlenberg, Michael Korell
  • Preparation of ketals
    Publication number: 20040152920
    Abstract: The invention relates to a process for ketalizing triacetonamine by reacting triacetonamine and a hydroxyl derivative, for example, a mono- or polyhydric alcohol, with gaseous hydrogen chloride to give an open-chain or cyclic ketal.
    Type: Application
    Filed: July 16, 2003
    Publication date: August 5, 2004
    Applicant: DEGUSSA AG
    Inventors: Oliver Meyer, Renate Uhlenberg, Michael Korell