Patents by Inventor Donald J. Gum

Donald J. Gum 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).

  • Transparent seal for liquid crystal display cells
    Patent number: 3990781
    Abstract: A composition and method of forming a seal in a liquid crystal display cell wherein planar glass plates are bonded together with a dispersion of fluorocarbon and an organosilane coupling agent to form a hermetically sealed cell wherein the seal does not react with the liquid crystal material.
    Type: Grant
    Filed: May 29, 1974
    Date of Patent: November 9, 1976
    Assignee: Beckman Instruments, Inc.
    Inventor: Donald J. Gum