Patents by Inventor Norbert Doering

Norbert Doering 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).

  • Adhesive stick based on starch ethers
    Patent number: 5433775
    Abstract: The invention relates to a dimensionally stable, soft-rubbing adhesive stick consisting of a water-based preparation of starch derivatives and a soap gel as the shaping gel-forming component and, optionally, other auxiliaries. To obtain an adhesive stick which is largely based on natural raw materials and which may therefore be regarded as safe from ecological and toxicological standpoints, the invention is characterized in that viscosity-reduced starch ethers are present as the starch derivatives.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: July 18, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Karl-Josef Gardenier, Gerhard Gierenz, Wolfgang Klauck, Bernd Peters, Horst Donothek, Norbert Doering