Patents by Inventor Michael C. Feldman

Michael C. Feldman 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).

  • Patent number: 6054809
    Abstract: Electroluminescent lamp designs and methods of fabricating electroluminescent lamps. Lamp designs provide laminar style lamps that include an electrically conductive layer with one or more openings therethrough separated by conductive elements. The openings preferably have a minimum edge to edge distance of less than about 0.005 inches and the conductive elements have a width of less than about 0.002 inches. Lamp designs also include "iso-planar" lamps that contain an electrically conductive layer with one or more channels separating the layer into two or more electrically conductive elements and an electroluminescent material disposed between the electrically conductive elements. The laminar style lamps and iso-planar lamps may be fabricated using printing techniques and the iso-planar lamps may also be fabricated using etching techniques. Both printed laminar and iso-planar lamps may be permanently reshaped using sheet forming techniques such as vacuum-forming or drape-forming.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: April 25, 2000
    Assignee: Add-Vision, Inc.
    Inventors: Bryan D. Haynes, Michael C. Feldman, Matthew C. Wilkinson
  • Patent number: 5876863
    Abstract: An electrically activated light emitting cylindrical or other shaped composite filament. A core conductor is optionally surrounded by a first optional insulation layer, surrounded by an outer electrode and an electroluminescent phosphor. The entire assembly may be coated with a second insulation layer. Light is produced by the phosphor when the core conductor and the outer electrode are connected to and energized by an appropriate electrical power supply. The filament may be used to form various one-, two- and three-dimensional light emitting objects.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: March 2, 1999
    Assignee: Add-Vision, Inc.
    Inventors: Michael C. Feldman, Bryan D. Haynes
  • Patent number: 5753381
    Abstract: An electrically activated light emitting cylindrical or other shaped composite filament. A core conductor is optionally surrounded by a first optional insulation layer, surrounded by an electrode and an electroluminescent phosphor. The entire assembly may be coated with a second insulation layer. Light is produced by the phosphor when the core conductor and the electrode are connected to and energized by an appropriate electrical power supply. The filament may be used to form various one-, two- and three-dimensional light emitting objects.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: May 19, 1998
    Inventors: Michael C. Feldman, Bryan D. Haynes