Patents by Inventor Boyd R. Frazee

Boyd R. Frazee 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).

  • Lead-free glass frit compositions
    Patent number: 4970178
    Abstract: Lead-free glass frit compositions for use in vitreous coatings consisting essentially of Na.sub.2 O--ZnO--B.sub.2 O.sub.3 --SiO.sub.2 in appropriate concentrations including molar amounts of at most 17.5 mole percent of B.sub.2 O.sub.3 and at least 40 mole percent of SiO.sub.2.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: November 13, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: David A. Klimas, Boyd R. Frazee