Patents by Inventor Doublas W. Hall

Doublas W. Hall 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).

  • Optical fiber made of galliobismuthate glasses and optical devices using same
    Patent number: 5148510
    Abstract: This invention is drawn to heavy metal oxide glasses exhibiting high nonlinear susceptibility and infrared transmission consisting essentially, in weight percent, of 42-48% PbO, 33-44% Bi.sub.2 O.sub.3, 10-15% Ga.sub.2 O.sub.3, and up to 15% total of at least one member of the group consisting of up to 5% SiO.sub.2 and/or GeO.sub.2 and up to 15% Tl.sub.2 O. This invention also comprehends the fabrication of light guiding fibers from those glasses.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: September 15, 1992
    Assignee: Corning Incorporated
    Inventors: Nicholas F. Borrelli, William H. Dumbaugh, Jr., Doublas W. Hall, Josef C. Lapp, Mark A. Newhouse, Mark L. Powley, David L. Weidman