Patents by Inventor Mathias Leonardus Maria Tunissen

Mathias Leonardus Maria Tunissen 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).

  • Electric lamp
    Patent number: 6777875
    Abstract: The electric lamp (1) has a lamp vessel (2), wherein an electric element (3) is accommodated. Said element is connected to current conductors (4), molybdenum end portions (5) of which extend outside the lamp vessel and have a skin of titanium nitride or chromium carbide as a protection against oxidation.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: August 17, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Maarten Walter Steinman, Mathias Leonardus Maria Tunissen