Patents by Inventor Hermann Widmann

Hermann Widmann 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).

  • Process for applying a luminophore layer
    Patent number: 5453292
    Abstract: To improve the uniformity and the adhesive strength of luminophore layers, a process is proposed in which the luminophore is enveloped with glass flux and the enveloped luminophore is applied to a luminophore carrier at elevated temperatures by using acrylic resin.
    Type: Grant
    Filed: November 6, 1990
    Date of Patent: September 26, 1995
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventors: Klaus Gerland, Klaus Hoffmann, Hermann Widmann
  • Process for producing a low-reflection luminophore layer
    Patent number: 5084110
    Abstract: A process is disclosed for producing a low-reflection luminophore layer in which an aluminum-plated metal plate is annealed under vacuum, and the luminophore is sintered onto the surface thus blackened by means of glass solder.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: January 28, 1992
    Assignee: Licentia Patent-Werwaltungs-GmbH
    Inventors: Hermann Widmann, Klaus Gerland, Klaus Hoffmann