Patents by Inventor Rene A. Stoffels

Rene A. Stoffels 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 cathrode ray tube and display device
    Patent number: 5825435
    Abstract: By selecting the number of apertures per vertical row in the shadow mask of a color cathode ray tube to be in the range between 615 and 650, such a cathode ray tube can be used both in a PAL, an NTSC system and a MUSE system without the occurrence of disturbing Moire effects. In a second embodiment the number of apertures per row ranges between 425 and 450.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: October 20, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Leendert Vriens, Rene A. Stoffels