Patents by Inventor Theresa M. Watschke

Theresa M. Watschke 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).

  • ELECTRODE INKS CONTAINING COALESCING SOLVENTS
    Publication number: 20090169949
    Abstract: A catalyst ink is provided comprising: a) solids, comprising: i) a catalyst material, and ii) a polymer electrolyte; b) an aqueous solvent; and c) a coalescing solvent. In some embodiments, the coalescing solvent is selected from the group consisting of alkanes, alkenes, amines, ethers, and aromatic compounds which may optionally be substituted. In some embodiments, the coalescing solvent is selected from the group consisting of partially fluorinated alkanes, partially fluorinated tertiary amines, fully fluorinated alkanes and fully fluorinated tertiary amines. In another aspect, the present disclosure provides a fuel cell membrane electrode assembly comprising a catalyst layer comprising a coalescing solvent.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Inventors: Michael T. HICKS, Steven J. HAMROCK, Eric J. HANSON, Theresa M. WATSCHKE, Mark S. SCHABERG
  • Retroreflective article and method of making the same
    Patent number: 5474827
    Abstract: A retroreflective article (100, 200, 300) includes a monolayer of retroreflective elements (120, 220, 320), a binder layer (110, 210, 310), and a compound comprising an aromatic bidentate moiety. The retroreflective elements (120, 220, 320) are partially embedded in the binder layer (110, 210, 310), and the compound is chemically associated with the retroreflective elements (120, 220, 320) to provide extraordinary laundering durability to the retroreflective article (100, 200, 300).
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: December 12, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Michael D. Crandall, Allen L. Griggs, Peter M. Olofson, Taun L. McKenzie, Theresa M. Watschke