Patents by Inventor Jeffrey L. Mitchell

Jeffrey L. Mitchell 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).

  • Encryption between multiple devices
    Patent number: 7333615
    Abstract: A first device receives first information and second information, encrypts the first information with a first set of encryption keys, and encrypts a combination of the second information and the encrypted first information with a second set of encryption keys into a first message. The first device may send the first message to a second device that receives the first message, decrypts the first message with a third set of encryption keys to yield the second information and the encrypted first information, determines a third information based on the second information, and encrypts into a second message, a combination of the third information and the encrypted first information, with a fourth set of encryption keys. The second message may be sent to a third device for decryption.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: February 19, 2008
    Assignee: AT&T Delaware Intellectual Property, Inc.
    Inventors: Andre D. Jarboe, Jeffrey L. Mitchell, Barrett M. Kreiner
  • Pipe boot cover
    Patent number: D796663
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: September 5, 2017
    Inventor: Jeffrey L. Mitchell