Patents by Inventor René Gráwe

René Gráwe 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).

  • Degradable chewing gum bases and method of making
    Patent number: 7479293
    Abstract: The invention relates to degradable chewing gum bases comprising elastomer, polymer resin, filler and further additives, in which the filler portion is entirely or partially replaced by an photoactive filler.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: January 20, 2009
    Assignee: Wacker Chemie AG
    Inventors: René Gráwe, Thomas Wimmer