Patents by Inventor Heinrich Grizinia

Heinrich Grizinia 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).

  • Method for improving the color number of trimethylolpropane
    Patent number: 8003830
    Abstract: The present invention relates to a method for the production of trimethylolpropane with a low color number by treatment with activated carbon.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: August 23, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wolfgang Mägerlein, Ulrich Notheis, Michael Friederich, Hans-Dieter Gerriets, Heinrich Grizinia, Paul Wagner
  • METHOD FOR IMPROVING THE COLOR NUMBER OF TRIMETHYLOLPROPANE
    Publication number: 20100137656
    Abstract: The present invention relates to a method for the production of trimethylolpropane with a low color number by treatment with activated carbon.
    Type: Application
    Filed: March 20, 2008
    Publication date: June 3, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Wolfgang Mägerlein, Ulrich Notheis, Michael Friederich, Hans-Dieter Gerriets, Heinrich Grizinia, Paul Wagner