Patents by Inventor Claude C. Frazier, III

Claude C. Frazier, III 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).

  • Optical monlinearity of aminobenzophenone derivatives
    Patent number: 4909608
    Abstract: Certain benzophenone derivatives having acentric crystalline space groups are disclosed as second-order nonlinear optical materials. The second harmonic signal of such derivatives is enhanced for compounds containing an electron-donating group attached to one of the benzene rings and which is para relative to the carbonyl group of the benzophenone derivative. Benzophenone hydrazone, 4-aminobenzophenone, and 4-amino-3-nitrobenzophenone are exemplary benzophenone derivatives according to the invention. Also disclosed are nonlinear optical devices which include single crystals of the benzophenone derivatives.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: March 20, 1990
    Assignee: Martin Marietta Corporation
    Inventor: Claude C. Frazier, III