Patents by Inventor Zoubair M. Cherkaoui

Zoubair M. Cherkaoui 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).

  • Dichroic mixtures
    Patent number: 7419620
    Abstract: A mesogenic, crosslinkable mixture comprising at least one polymerisable liquid crystal and at least one polymerisable dichroic dye of the general formula I: wherein A represents a dichroic residue exhibiting at least partial absorption in the visible region >400 nm; n1, n2, n3, n4 signifies 0 or 1 whereby the sum of n1, n2, n3 and n4 is >0, and B1 and B4 represent a group of substructure II wherein the broken line symbolises the linkage to said dichroic residue.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: September 2, 2008
    Assignee: Rolic Ltd c/o Rolic Technologies Ltd
    Inventors: Richard Buchecker, Zoubair M. Cherkaoui, Thomas Peglow, Franco Moia
  • Dichoric mixture
    Publication number: 20040164272
    Abstract: A mesogenic, crosslinkable mixture comprising at least one polymerisable liquid crystal and at least one polymerisable dichroic dye of the general formula (I) wherein A represents a dichroic residue exhibiting at least partial absorption in the visible region >400 nm: n1, n2, n3, n4 signifies 0 or 1 whereby the sum of n1, n2, n3, n4 is >0, and B1 to B4 represent a group of substructure II wherein the broken line symbolizes the linkage to said dichroic residue.
    Type: Application
    Filed: April 8, 2004
    Publication date: August 26, 2004
    Inventors: Richard Buchecker, Zoubair M. Cherkaoui, Thomas Peglow, Franco Moia