Patents by Inventor Ulrich Boddenberg

Ulrich Boddenberg 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 cleaning production plants for polyester polyols
    Patent number: 7091304
    Abstract: The present invention relates to a process for cleaning multi-product production plants for polyester polyols with a cleaning polyol. The cleaning polyol can be used as a raw material in the production of further polyols.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: August 15, 2006
    Assignee: Bayer Materialscience AG
    Inventors: Hartmut Nefzger, Gerhard Klein, Erhard Michels, Ulrich Boddenberg
  • Process for cleaning production plants for polyester polyols
    Publication number: 20050143555
    Abstract: The present invention relates to a process for cleaning multi-product production plants for polyester polyols with a cleaning polyol. The cleaning polyol can be used as a raw material in the production of further polyols.
    Type: Application
    Filed: December 7, 2004
    Publication date: June 30, 2005
    Inventors: Hartmut Nefzger, Gerhard Klein, Erhard Michels, Ulrich Boddenberg