Patents by Inventor Bernard Diffin

Bernard Diffin 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 for presenting multiple illuminated messages and a method for making same
    Patent number: 6160495
    Abstract: A device for presenting multiple illuminated messages and a method for making same. The device includes a uniformly thick panel of transparent material having at least one elongated and continuous passageway therein forming a message to be indicated. The passageway is filled with gas and materials that emit light.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: December 12, 2000
    Assignee: deMco Technologies, Inc.
    Inventors: Lon A. Demink, Bernard Diffin
  • Light device with holographic optics
    Patent number: 5917622
    Abstract: A device for providing illumination to a specifically defined region including in combination an extended and diffuse light source and a holographic optical element mounted in spaced relation to said light source, said holographic optical element comprising a layer of holograph adaptable material having formed thereon an array of independent holographic lenses each responsive to selected regions on said light source for directing light collected from said selected regions on said light source to a selected viewing pattern.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: June 29, 1999
    Assignee: deMco Technologies, Inc.
    Inventors: Bernard Diffin, Lon A. Demink