Patents by Inventor Patrick Scheifele

Patrick Scheifele 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).

  • Polymerizable copolymers for alignment layers
    Patent number: 7632906
    Abstract: Composition comprising at least one ethylenically unsaturated monomer to which a photochemically isomerizable or dimerizable molecule is covalently bonded, and at least one ethylenically unsaturated monomer to which a sensitizer is covalently bonded, are outstandingly suitable for producing polymeric alignment layers for liquid crystals.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: December 15, 2009
    Assignee: Rolic AG
    Inventors: Peggy Studer, Richard Stossel, Patrick Scheifele, Yonetatsu Matsumoto
  • Crosslinkable, photoactive polymers and their use
    Publication number: 20050288426
    Abstract: Copolymers composed of (a) at least one monomer from the group of acrylates, methacrylates, acrylamides and methacrylamides, to each of which is bonded covalently, directly or via a bridging group, a photochemically isomerizable or dimerizable molecule, (b) at least one polyoxyalkyl ester or one polyoxyalkylamide of an ethylenically unsaturated mono- or dicarboxylic acid, or one polyoxyalkyl ether of an ethylenically unsaturated alcohol, and (c) optionally, other ethylenically unsaturated comonomers are outstandingly suitable as alignment layers for liquid crystals.
    Type: Application
    Filed: December 2, 2003
    Publication date: December 29, 2005
    Inventors: Peggy Studer, Patrick Scheifele, Richard Stossel, Yonetatsu Matsumoto, Stefan Barny