Patents by Inventor Mary J. Daub

Mary J. Daub 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).

  • Low-fusing temperature porcelain, compositions, prostheses, methods and kits
    Patent number: 5713994
    Abstract: A low-fusing temperature porcelain compositions, methods of use thereof on metal or porcelain substrates to form dental prostheses and kits therefor. Compositions of the invention have a fusing temperature of less than 800.degree. C. and a coefficient of thermal expansion compatible with a substrate of metal or ceramic. Each composition includes, in weight percent of the composition, from 40 to 65 percent by weight SiO.sub.2, from 6 to 12 percent by weight Al.sub.2 O.sub.3, from 6 to 12 percent by weight Na.sub.2 O, from 5.5 to 10.50 percent by weight K.sub.2 O, from 1 to 3 percent by weight Li.sub.2 O, from 0.8 to 2.5 percent by weight CaO, from 0.8 to 4.0 percent by weight B.sub.2 O.sub.3 and from 0.1 to 0.8 percent by weight CeO.sub.2.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: February 3, 1998
    Assignee: Ceramco Inc.
    Inventors: Carolyn M. Kramer, John F. McLaughlin, Robert D. DeLuca, John A. Hornor, Mary J. Daub, Kevin A. Andino