Patents by Inventor David Matthew Holscher

David Matthew Holscher 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).

  • Illuminated membrane switch
    Patent number: 7071433
    Abstract: An illuminated membrane switch employs transparent conductive elements in the region of the button so as to provide passage of light from behind the membrane switch to the user without shadowing by opaque conductive elements.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: July 4, 2006
    Assignee: Ark-Les Corporation
    Inventor: David Matthew Holscher