Patents by Inventor Gabriele Trifellner

Gabriele Trifellner 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).

  • Use of polymer powders that are redispersible in water as a binding agent for jointing sand
    Patent number: 7582695
    Abstract: Dry jointing sand which is swept into joints is consolidated by addition of a powder composition employing either a polyvinyl alcohol-stabilized redispersible polymer powder which contains functional post-crosslinking comonomers, or a redispersible polymer powder stabilized by a polymer of one or more ethylenically unsaturated mono- or dicarboxylic acids and/or anhydrides thereof. The sand is bonded within the joints upon contact with moisture.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: September 1, 2009
    Assignee: Wacker Chemie AG
    Inventors: René Gräwe, Gabriele Trifellner
  • Use of polymer powders that are redispersible in water as a binding agent for jointing sand
    Publication number: 20060020058
    Abstract: Dry jointing sand which is swept into joints is consolidated by addition of a powder composition employing either a polyvinyl alcohol-stabilized redispersible polymer powder which contains functional post-crosslinking comonomers, or a redispersible polymer powder stabilized by a polymer of one or more ethylenically unsaturated mono- or dicarboxylic acids and/or anhydrides thereof. The sand is bonded within the joints upon contact with moisture.
    Type: Application
    Filed: October 16, 2003
    Publication date: January 26, 2006
    Inventors: Rene Grawe, Gabriele Trifellner
  • Process for treating semiconductor material with an acid-containing fluid
    Patent number: 5587046
    Abstract: A process for treating semiconductor material with an acid-containing fluid, has water being formed as a product of a chemical reaction. Before and/or during the treatment of the semiconductor material, phosphorus pentoxide is added to the acid-containing fluid.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: December 24, 1996
    Assignee: Wacker Siltronic Gesellschaft Fur Halbleitermaterialien Aktiengesellschaft
    Inventors: Maximilian Stadler, Gunter Schwab, Peter Romeder, Gabriele Trifellner