Patents by Inventor Gerhardus Albertus TE Raa

Gerhardus Albertus TE Raa 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).

  • Coating for X-ray tube rotary anode surface remote from the electron target area
    Patent number: 3993923
    Abstract: A rotary anode for an X-ray tube in which the surface remote from the electron target area is covered with a metal oxide coating comprising at least 94 percent by weight Al.sub.2 O.sub.3 and at least 2 percent by weight TiO.sub.2.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: November 23, 1976
    Assignee: U.S. Philips Corporation
    Inventors: Frederik Magendans, Gerhardus Albertus TE Raa