Patents by Inventor Theodorus Cornelis Jozef Maria Hegge

Theodorus Cornelis Jozef Maria Hegge 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).

  • Liquid crystalline compounds
    Patent number: 4107189
    Abstract: Liquid crystalline 2,3-diphenyl acrylonitrile derivatives, i.e., 2-(p-ethoxyphenyl)-3-(p-hexyloxyphenyl) acrylonitrile, exhibit dynamic scattering in an electrical field and are useful in electro-optic displays and as solvents in E.S.R. and N.M.R. spectroscopy.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: August 15, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Jan van der Veen, Theodorus Cornelis Jozef Maria Hegge
  • Liquid crystalline compounds and mixtures
    Patent number: 4097120
    Abstract: Novel nematic liquid crystalline azo-compounds have been found, which are anisotropic over a wide temperature range which includes room temperature.The compounds are temperature, light and moisture proof. They exhibit no dynamic scattering. The compounds may be employed in E.S.R. and N.M.R. spectroscopy, and, as the case may be mixed with other nematic liquid crystalline compounds, in displays.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: June 27, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Jan vanderVeen, Theodorus Cornelis Jozef Maria Hegge
  • Liquid crystalline azobenzene compounds
    Patent number: 3984392
    Abstract: Novel nematic liquid crystalline azo-compounds have been found, which are anisotropic over a wide temperature range which includes room temperature.The compounds are temperature, light and moisture proof. They exhibit no dynamic scattering. The compounds may be employed in E.S.R. and N.M.R. spectroscopy, and, as the case may be mixed with other nematic liquid crystalline compounds, in displays.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: October 5, 1976
    Assignee: U.S. Philips Corporation
    Inventors: Jan van der Veen, Theodorus Cornelis Jozef Maria Hegge