Patents by Inventor Clifford G. Gruschow

Clifford G. Gruschow 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).

  • Method of manufacturing lightweight composite glass-plastic lenses
    Patent number: 4948447
    Abstract: A process and product for the manufacture of a composite plastic lens wherein the plastic lens component is subjected to ultraviolet rays under conditions to eliminate substantially any unreacted double bonds therein.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: August 14, 1990
    Assignee: BCGS, Inc.
    Inventors: Louis G. Clarke, Clifford G. Gruschow