Patents by Inventor Winand Friederichs

Winand Friederichs 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).

  • Halogen lamps with mains-to-low voltage drivers
    Patent number: 7339790
    Abstract: A halogen lamp includes a mains base and a converter operably connected to the mains base. The converter has a lamp socket, a toroid transformer, and a heat sink disposed within a center opening of the toroid transformer. A lamp is removably disposed in the lamp socket. The converter has a power density between 0.75 and 3.75 Watts/cm3. In an alternate embodiment, the halogen lamp includes a low voltage, low pressure IRC lamp operably connected to the converter.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: March 4, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Karl Baker, Jack Baldrige, Oliver Boehme, Marlena Brzozowski, Utsawa Chaturvedi, Winand Friederichs, Rebecca Ketchum, Mark Morrell, Bruno Thoennessen, Vineet Tyagi, Eswara Vallabhaneni
  • Halogen lamps with mains-to-low voltage drivers
    Publication number: 20060038497
    Abstract: A halogen lamp (28) includes a mains base (34); a converter (32) operably connected to the mains base (34), the converter (32) having a lamp socket (38); and a lamp (36) removably disposed in the lamp socket (38); wherein the converter (32) has a power density between 0.75 and 3.75 Watts/cm3. In an alternate embodiment, the halogen lamp (28) includes a mains base (34), a converter (32) operably connected to the mains base (34), and a low voltage, low pressure IRC lamp (36) operably connected to the converter (32).
    Type: Application
    Filed: August 16, 2005
    Publication date: February 23, 2006
    Inventors: Karl Baker, Jack Baldridge, Oliver Boehme, Marlena Brzozowski, Utsawa Chaturvedi, Winand Friederichs, Rebecca Ketchum, Mark Morrell, Bruno Thoennessen, Vineet Tyagi, Eswara Vallabhaneni