Patents by Inventor Rudolf Heimgärtner

Rudolf Heimgärtner 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).

  • Device having a protective seal for emitting electromagnetic radiation and process for producing the device
    Patent number: 6972518
    Abstract: A device for emitting electromagnetic radiation includes a substrate, at least one active layer of a radiation-emitting organic material, a cover, and a seal between the substrate and the cover so that an interior space between the substrate and the cover is closed off in a gas-tight manner. The seal protects the active layer against humidity from the ambient air. By using simple and cost-effective measures, the device thus has a long service life and benefits from all advantages of organic, light-emitting diodes.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: December 6, 2005
    Assignee: Infineon Technologies AG
    Inventors: Rudolf Heimgärtner, Franz Petter