Patents by Inventor Thilo Gebhard

Thilo Gebhard 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 mixtures
    Patent number: 7396486
    Abstract: A mixture which is polymerizable to polymers exhibiting a high optical anisotropy which is stable during polymerization. The mixture contains a first monomer or (and/or) oligomer having two or more polymerizable functional groups and optionally a mesogenic group; a second monomer or oligomer bearing at least one mesogenic group having an aromatic double ring structure and only one polymerizable group; and from 1 to 50% by weight of a monomer non-polymerizable with the first or second monomer, but which also contains a mesogenic group having an aromatic double ring structure.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: July 8, 2008
    Assignee: Wacker Chemie AG
    Inventors: Eckhard Hanelt, Thilo Gebhard, Markus Jandke
  • Polymerisable mixtures
    Publication number: 20060097224
    Abstract: A mixture which is polymerizable to polymers exhibiting a high optical anisotropy which is stable during polymerization. The mixture contains a first monomer or (and/or) oligomer having two or more polymerizable functional groups and optionally a mesogenic group; a second monomer or oligomer bearing at least one mesogenic group having an aromatic double ring structure and only one polymerizable group; and from 1 to 50% by weight of a monomer non-polymerizable with the first or second monomer, but which also contains a mesogenic group having an aromatic double ring structure.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 11, 2006
    Inventors: Eckhard Hanelt, Thilo Gebhard, Markus Jandke
  • Optical elements having color-selective and polarization-selective reflection containing LC pigments, and the production of these elements
    Patent number: 5683622
    Abstract: Wavelength-selective and polarization-selective optical elements contain pigments embedded in a transparent binder, in which the pigments include at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral phase.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: November 4, 1997
    Assignee: Consortium fur elektrochemische Industrie GmbH
    Inventors: Oliver Kratzschmar, Thilo Gebhard, Silvia Ehmann, Franz-Heinrich Kreuzer