Patents by Inventor Ralf Dotterweich

Ralf Dotterweich 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).

  • Discharge Lamp and Method for Producing a Discharge Lamp
    Publication number: 20100102699
    Abstract: A discharge lamp having a discharge vessel (2) that comprises at least one bulb neck (21, 22), into which are fused a holding rod (6) extending into the discharge space (3) for an electrode (4, 5), a carrier part (10) on which at least one current-carrying element (9) is arranged, a support element (7) enclosing the holding rod (6) and a tube (13) enclosing the carrier part (10) with the current-carrying element. The tube (13) encloses the support element (7) over a partial length (L3) which is less than the total length (L) of the support element (7).
    Type: Application
    Filed: March 12, 2007
    Publication date: April 29, 2010
    Applicant: OSRAM GESELLSCHAFT mit beschrankter Haftung
    Inventors: Rainer Koger, Karsten Schwandt, Ralf Dotterweich, Piotr Kreft
  • High pressure discharge lamp having cap to prevent flashover
    Patent number: 6600267
    Abstract: A high-pressure discharge lamp having a discharge vessel (1) closed at two ends, the supply lead (15) near the base, and the free end (14) of the associated short supply conductor (4) being covered by a tubular cap (10) whose first end, directed toward the discharge vessel, is open, and whose second end, directed toward the base, is closed.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: July 29, 2003
    Assignee: Patent-Treuhand-Gesellschaft fuer Eleltrische Gluehlampen mbH
    Inventors: Ralf Dotterweich, Clemens Wesseling