Patents by Inventor Mark D. Lieberman

Mark D. Lieberman 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).

  • Wireless communication device with detachable flip keyboard
    Patent number: 6385463
    Abstract: A wireless communication device (101) is coupled to an external keyboard (126) through an input/output (I/O) connector (128) mounted on the housing of the wireless communication device (101). The external keyboard (126) includes individual keys for alphabetic characters and numeric characters to permit the easy entry of alphanumeric text for text messaging transmissions by the wireless communication device (101). The keyboard may include a keyboard body (138) with an aperture (144) size to receive and retain the wireless communication device. The I/O connector (128) on the wireless communication device (101) mates with a corresponding keyboard connector (129) located within the aperture (144) of the keyboard body (138).
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: May 7, 2002
    Assignee: Qualcomm Incorporated
    Inventors: Mark D. Lieberman, Anthony Blow