Patents by Inventor Heinz W. Sell

Heinz W. Sell 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).

  • Lamp filament
    Patent number: 7541726
    Abstract: A base-up incandescent lamp (10) includes a coiled-coil filament (14) that has a primary wire (18) and a secondary wire (16), the primary wire (18) comprising an overwind that overlies the secondary wire (16) and provides a lower filament temperature and, therefore, less filament sag and a concomitant longer lamp life.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: June 2, 2009
    Assignee: Osram Sylvania Inc.
    Inventors: Jason J. Li, Alexander N. Kasak, Heinz W. Sell, Alan L. Lenef, Raymond T. Fleming, Richard C. Laird
  • Multi-segment filament high output halogen lamp
    Patent number: 7468576
    Abstract: A high output halogen lamp having five filament segments with four segments in a circular arrangement surrounding a fifth segment positioned directly in the center of the lamp axis which contributes to the high output and a more uniform light distribution.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 23, 2008
    Assignee: Osram Sylvania Inc.
    Inventors: Alexander N. Kasak, Victor Cordero Cabrales, Heinz W. Sell, Michael Achim Willacker