Patents by Inventor William Bernard Hall

William Bernard 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).

  • Liquid crystal device and method for preparing same
    Patent number: 4095876
    Abstract: A liquid crystal cell comprises two conductive glass plates sealed together by means of a glass frit seal along the edges of the plates in spaced apart relation to form an enclosure. A gap is left through the seal for filling the enclosure with a liquid crystal composition with a barrier behind the gap. Prior to filling, a continuous multimetal coating is sputtered so as to completely surround the gap. After the cell is filled, the gap is hermetically sealed by means of a fused solder seal bonded to the sputtered coating.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: June 20, 1978
    Assignee: RCA Corporation
    Inventors: Carel Willem Horsting, William Bernard Hall