Patents by Inventor Dragan Milan Gavrilovic

Dragan Milan Gavrilovic 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).

  • Novel liquid crystal compounds and electro-optic devices incorporating them
    Patent number: 4029594
    Abstract: Liquid crystal compounds of the formula ##STR1## wherein X can be alkyl (R-), alkoxy (RO-), acyloxy ##STR2## or alkylcarbonato ##STR3## wherein R is an alkyl group from 1-10 carbon atoms, and R.sub.1 -R.sub.3 can be hydrogen, methyl or halogen with the proviso that at least one and no more than two of R.sub.1 -R.sub.3 are substituents other than hydrogen, have positive dielectric anisotropy and are useful in electro-optic devices which comprise a thin liquid crystal layer between two closely spaced parallel electrodes.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: June 14, 1977
    Assignee: RCA Corporation
    Inventors: Dragan Milan Gavrilovic, Daniel Louis Ross
  • Novel liquid crystal compounds and electro-optic devices incorporating them
    Patent number: 4029595
    Abstract: Liquid crystal compounds of the formula ##STR1## wherein X can be an alkoxy (RO-), an acyloxy ##STR2## or an alkylcarbonato ##STR3## group wherein R is an alkyl group having up to 10 carbon atoms and Y is a nitro or cyano group, having positive dielectric anisotropy and are useful in electro-optic devices which comprise a thin liquid crystal layer between two closely spaced parallel electrodes.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: June 14, 1977
    Assignee: RCA Corporation
    Inventors: Daniel Louis Ross, Dragan Milan Gavrilovic
  • Liquid crystal compounds and electro-optic devices incorporating them
    Patent number: 4013582
    Abstract: Liquid crystal compounds of the formula ##STR1## wherein X can be alkoxy (RO-), acyloxy ##STR2## or alkylcarbonate ##STR3## wherein R is an alkyl group from 1-10 carbon atoms, have positive dielectric anisotropy and are useful in electro-optic devices which comprise a thin liquid crystal layer between two closely spaced parallel electrodes.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: March 22, 1977
    Assignee: RCA Corporation
    Inventor: Dragan Milan Gavrilovic
  • Novel liquid crystal electro-optic devices
    Patent number: 3951846
    Abstract: Nematic liquid crystal compounds of the formula: ##SPC1##Wherein X can be hydrogen, alkyl (R-), alkoxy (RO-), acyloxy ##EQU1## or alkylcarbonato ##EQU2## wherein R is an alkyl group of 1-10 carbon atoms, have positive dielectric anisotropy and are useful in electro-optic cells which comprise a thin liquid crystal layer between two closely spaced parallel electrodes.
    Type: Grant
    Filed: June 28, 1974
    Date of Patent: April 20, 1976
    Assignee: RCA Corporation
    Inventor: Dragan Milan Gavrilovic