Patents by Inventor Tamara LEHMANN

Tamara LEHMANN 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).

  • Compounds for the homeotropic alignment of liquid-crystalline media
    Patent number: 11274254
    Abstract: Liquid-crystalline media (LC media) comprising self-aligning mesogens (self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The self-alignment additives contain five-ring systems. LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional alignment layers are provided.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 15, 2022
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Edward Plummer, Rocco Fortte, Helmut Haensel, Timo Uebel, Tamara Lehmann
  • COMPOUNDS FOR THE HOMEOTROPIC ALIGNMENT OF LIQUID-CRYSTALLINE MEDIA
    Publication number: 20190241809
    Abstract: Liquid-crystalline media (LC media) comprising self-aligning mesogens (self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The self-alignment additives contain five-ring systems. LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional alignment layers are provided.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 8, 2019
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Edward PLUMMER, Rocco FORTTE, Helmut HAENSEL, Timo UEBEL, Tamara LEHMANN