Patents by Inventor Ursula Bruggemann

Ursula Bruggemann 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 incandescent lamp with sintered glass plate
    Patent number: 6204598
    Abstract: The electric incandescent lamp has a sintered glass plate (1) through which current conductors (2) and a metal tube (3) extend. An incandescent body (4) is connected to said current conductors (2) aligned with respect to the sintered plate (1). A glass bulb (5) is present over the incandescent body (4), gastight secured to the sintered plate (1) by means of enamel (6). A water getter (20) and a heavy gas at an elevated pressure are present inside the glass bulb (5). The lamp may consume a relatively high power and may be relatively small, but nevertheless has a relatively long life.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: March 20, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Ursula Bruggemann, Wilfried L. Kohlmann, Jacques M.J. Geboers, Antonius J.M. Van Hees
  • Electric incandescent lamp with sintered body glass plate
    Patent number: 6140769
    Abstract: The electric incandescent lamp has a sintered glass plate through which current conductors and a metal tube extend. An incandescent body is connected to the current conductors aligned with respect to the plate. A glass bulb is present over the incandescent body, secured to the plate in a gastight manner by means of enamel. A water getter and a heavy gas at an elevated pressure are present inside the glass bulb.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: October 31, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Ursula Bruggemann, Wilfried L. Kohlmann, Jacques M.J. Geboers, Antonius J.M. Van Hees