Patents by Inventor Charles C Bahr, Jr.

Charles C Bahr, Jr. 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).

  • Process for fabricating fluorine-doped sol-gel article
    Patent number: 6223563
    Abstract: The invention reflects discovery of a liquid phase doping technique that, unlike previous techniques, exhibits very little fluorine depletion upon subsequent heating. The invention involves the steps of providing a silica sol comprising a tetraalkylammonium hydroxide and a di-, tri-, or tetraalkylammonium fluoride, the sol having pH of about 10 to about 14, adding a gelling agent to the sol to induce gelation, casting or extruding the sol to form a gel body, and then drying, heat treating, and sintering the body. Advantageously, the fluorine-containing compound is tetramethylammonium fluoride.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: May 1, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Charles C Bahr, Jr., Suhas Bhandarkar, Michael P Bohrer