Patents by Inventor Mark Bradford Clifton

Mark Bradford Clifton 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).

  • Smart cards having thin die
    Patent number: 5719437
    Abstract: Thin semiconductor die, approximately 0.004 to 0.007 inches thick, are positioned substantially on the neutral plane of a smart card, the neutral plane defined as the plane of substantially no mechanical strain during flexure of the smart card, thereby providing smart cards having improved resistance to mechanical flexure, and/or smart cards having improved RF performance.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: February 17, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: Mark Bradford Clifton, Richard Michael Flynn, Fred William Verdi
  • Smart cards having thin die
    Patent number: RE37637
    Abstract: Thin semiconductor die, approximately 0.004 to 0.007 inches thick, are positioned substantially on the neutral plane of a smart card, the neutral plane defined as the plane of substantially no mechanical strain during flexure of the smart card, thereby providing smart cards having improved resistance to mechanical flexure, and/or smart cards having improved RF performance.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: April 9, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: Mark Bradford Clifton, Richard Michael Flynn, Fred William Verdi