Patents by Inventor Dieter Witte

Dieter Witte 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).

  • Circular fluorescent lamp with improved housing containing ballast and starting device
    Patent number: 4410834
    Abstract: A circular fluorescent lamp unit comprises a circular tubular fluorescent mp; a housing secured inside the space formed by the circular fluorescent lamp, the housing containing the ballast and starting device; and a base for connection to a supply voltage, the base being connected to the housing concentrically with the circular fluorescent lamp. The improvement resides in that the housing is an elongate hollow body which extends diametrically across the space defined by the circular fluorescent lamp; the housing having one end for enclosing the ends of the circular fluorescent lamp and another end for taking support against the wall of the circular fluorescent lamp which is diametrically opposite to the ends of the circular fluorescent lamp. In a preferred embodiment, the housing comprises two interconnected form locking housing cup-shaped members.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: October 18, 1983
    Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventors: Dieter Witte, Alfons Jendrewski, Gerhard Nadler
  • Compact screw-in fluorescent lamp
    Patent number: D291358
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: August 11, 1987
    Assignee: Osram GmbH
    Inventor: Dieter Witte
  • Adjustable light fixture
    Patent number: D293720
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: January 12, 1988
    Assignee: OSRAM Gesellschaft mit beschrunkter Haftung
    Inventor: Dieter Witte