Patents by Inventor Alexey Y. Nokel

Alexey Y. Nokel 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).

  • Sulfoderivatives of acenaphtho[1,2-]quinoxaline, lyotropic liquid crystal and anisotropic film on their base
    Patent number: 7045177
    Abstract: The present invention provides a series of new chemical compounds, lyotropic liquid crystal systems, materials, blends, mixtures, namely acenaphtho[1,2-b]quinoxaline sulfoderivatives of the general structural formula: wherein n is an integer in the range of 1 to 4; m is an integer in the range of 0 to 4; z is an integer in the range of 0 to 6, and m+z+n?10; X and Y are individually selected from the group consisting of CH3, C2H5, OCH3, OC2H5, Cl, Br, OH, OCOCH3NH2, NHCOCH3, NO2, F, CF3, CN, OCN, SCN, COOH, and CONH2; M is a counterion; and j is the number of counterions in the molecule.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: May 16, 2006
    Assignee: Nitto Denko Corporation
    Inventors: Tatyana Y. Dutova, Alexey Y. Nokel, Elena N. Sidorenko, Sergey V. Timofeev