Patents by Inventor Katharine Keller

Katharine Keller 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).

  • Light influencing element
    Patent number: 7766506
    Abstract: In the case of a light influencing element (6) for directing the light emitted from a light source (4) to a predetermined angular region, which has a plurality of rib-like raster elements (7, 12), which have reflecting side walls and are arranged in regular structure, the raster elements (7, 12) have a height (H) of a maximum of 5 mm. Through this there arise on the one hand greater freedoms in the design of the luminaire. On the other hand, the luminaire is lent an optical appealing appearance.
    Type: Grant
    Filed: April 3, 2005
    Date of Patent: August 3, 2010
    Assignee: Zumtobel Staff GmbH
    Inventor: Katharine Keller