Patents by Inventor Gerald R. Meredith

Gerald R. Meredith 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).

  • Organic optical elements and nonlinear optical devices
    Patent number: 5145610
    Abstract: Optical elements comprising noncentrosymmetric crystalline organic compounds are provided, that are capable of second harmonic generation. The invention further provides for nonlinear optical devices and modulators incorporating the optical elements.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: September 8, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dennis S. Donald, Gerald R. Meredith
  • Composite quasi-crystalline material
    Patent number: 4405733
    Abstract: A composite quasi-crystalline material made of a polymeric support matrix having disposed therein polar quasi-crystals of photochromic spiropyran complexes, believed to be of the formula A.sub.n B, in which A represents the "colorless" photochromic spiropyran molecule and B represents the colored merocyanine form which is the photolysis product of A, and n is 2 or 3. The polar quasi-crystals are present in the composite material in a substantially polar aligned form. Methods for making the composite material are also disclosed.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: September 20, 1983
    Assignee: Xerox Corporation
    Inventors: David J. Williams, Gerald R. Meredith, George R. Olin