Patents by Inventor Thomas D. M. Vrancken

Thomas D. M. Vrancken 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).

  • Color display tube having color selection structure with rough surface
    Patent number: 5633559
    Abstract: A color display tube comprising a color selection structure which is provided with a layer of getter material, the surface on which the layer of getter material being provided is rough. In this manner heat radiation is increased and doming of the color selection structure is reduced.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: May 27, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Theodoor C. A. Hens, Johannes M. A. A. Compen, Maria C. Van Uden, Thomas D. M. Vrancken