Patents by Inventor Warren R. Cannon

Warren R. Cannon 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).

  • Castable glass-ceramic composition useful as dental restorative
    Patent number: 4515634
    Abstract: A glass ceramic, useful in making dental crowns and bridges, consisting essentially of:______________________________________ Broad Range, Preferred Component Mole Percent Mole % ______________________________________ Li.sub.2 O 24-33 29.5 .+-. 1 SiO.sub.2 37-74.3 59.0 .+-. 3,-2 Al.sub.2 O.sub.3 0.5-4 1.5 .+-. 0.5 CaO 1-10 6.0 .+-. 1 P.sub.2 O.sub.5 0.2-4 2.0 + 0.5,-1 TiO 0-4 1.0 .+-. 0.5 ZrO.sub.2 0-4 1.0 .+-. 0.5 MgO 0-2 -- K.sub.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: May 7, 1985
    Assignee: Johnson & Johnson Dental Products Company
    Inventors: Jenn-Ming Wu, Warren R. Cannon, Carlino Panzera