Patents by Inventor Scott David Alhart

Scott David Alhart 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).

  • Force sensing pointing device with click function
    Patent number: 7176889
    Abstract: An input device for an electronic system includes a force sensor having conductive interdigitated traces on a bottom substrate and a flexible substrate spaced apart from the bottom substrate. The flexible substrate has a resistive layer deposited on a bottom side facing the interdigitated traces. A snap dome is positioned over a portion of the force sensor flexible substrate. A flexible keymat membrane is positioned over the force sensor and the snap dome. The keymat membrane bottom surface faces the force sensor flexible substrate. The keymat membrane bottom surface has a protruding region surrounding the snap dome and spaced above the force sensor flexible substrate. A center keycap on the keymat membrane top surface is positioned over the snap dome. A surrounding keycap on the keymat membrane encloses the center keycap and is positioned over the keymat membrane protruding region.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: February 13, 2007
    Assignee: Interlink Electronics, Inc.
    Inventors: Jeffrey Ross Baker, James Dexter Tickle, Carlos Solis Sanchez, Scott David Alhart