Patents by Inventor Séverine Meyer

Séverine Meyer 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).

  • Chiral doping agents with variable spiral pitch induction and application thereof to a reflective color display
    Patent number: 6680003
    Abstract: The present invention concerns chiral doping agents allowing a modification to be induced in the spiral pitch of a cholesteric liquid crystal, said doping agents including a biactivated chiral unit at least one of whose functions allows a chemical link to be established with an isomerisable group, for example by radiation, said group possibly having a polymerisable or co-polymerisable end chain. These new chiral doping agents find application in particular in a color display.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: January 20, 2004
    Assignee: Asulab S.A.
    Inventors: Thierry Chuard, Robert Deschenaux, Rolf Klappert, Séverine Meyer
  • Chiral doping agents with variable spiral pitch induction and application thereof to a reflective colour display
    Publication number: 20020114902
    Abstract: The present invention concerns chiral doping agents allowing a modification to be induced in the spiral pitch of a cholesteric liquid crystal, said doping agents including a biactivated chiral unit at least one of whose functions allows a chemical link to be established with an isomerisable group, for example by radiation, said group possibly having a polymerisable or co-polymerisable end chain.
    Type: Application
    Filed: December 4, 2001
    Publication date: August 22, 2002
    Applicant: ASULAB S.A.
    Inventors: Thierry Chuard, Robert Deschenaux, Rolf Klappert, Severine Meyer