Patents by Inventor William Pendergrass

William Pendergrass 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).

  • Publication number: 20050109780
    Abstract: Drinking cup lids are especially adapted and configured to afford some measure of protection to the game piece from beverage seepage through a straw opening. Preferably, the cup lid is configured so that a game piece is spaced above the straw opening co-located within a recessed well of the lid thereby allowing beverage seepage to remain physically separated from the game piece. Access to the beverage within the cup is facilitated by providing a cross-cut straw aperture in the game piece which is in substantial alignment to the straw opening formed in the lid. A beveled segment of a raised plateau on which the game piece is affixed allows a tab associated with the game piece to be more easily grasped and removed by a customer to reveal the printed text/indicia of the game piece.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 26, 2005
    Applicant: Sweetheart Cup Company Inc.
    Inventors: William Pendergrass, Robert Schaefer, Joseph Neukam, Peter Boller
  • Patent number: 5920630
    Abstract: A key escrow encryption method, where two users each have secret encryption keys and corresponding public encryption keys. One user receives the public encryption keys of the other user and generates a first datum based on them, an identifier of the other user, the secret encryption keys and identifier of the user, and an access restriction. The user generates a second datum based on the first datum and another access restriction. The user generates a key based on the first and second datums. The user encrypts a message using the key and sends it to the other user. Key escrow is included by requiring each user to distribute its secret encryption keys among escrow agents. The escrow agents transform, sign, and transmit it to a certifying authority. The certifying authority signs and publishes it as user's public key certificate. To communicate, a user retrieves the certificate of the other user, forms a key, encrypts a message, and transmits it to the other user.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: July 6, 1999
    Assignee: United States of America
    Inventors: Michael A. Wertheimer, Boyd T. Livingston, Tad P. White, Benjamin M. Bielefeld, Thomas H. Monroe, J. William Pendergrass