Patents by Inventor Song Q. Shi

Song Q. Shi 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).

  • Soluble precursor to poly (cyanoterephthalydene) and method of preparation
    Patent number: 5473047
    Abstract: A method of preparing a lass of PPV derivatives includes preparing a soluble precursor of a PPV derivative and converting the soluble precursor to a PPV derivative. The converting includes performing either a thermal treatment in a range of temperatures from approximately 25.degree. C. to 400.degree. C. at a reduced pressure or an acid-catalyzed ultraviolet radiation treatment.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: December 5, 1995
    Assignee: Motorola, Inc.
    Inventor: Song Q. Shi