Patents by Inventor David Dorenbos

David Dorenbos 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).

  • Use of an encryption server for encrypting messages
    Patent number: 5751813
    Abstract: An encryption server receives a first encrypted message (105) and decrypts (403) the encrypted message using a first key, yielding a decrypted message comprising a second encrypted message (105A), an identification of a sender of the first encrypted message, and an identification of a first recipient. The second encrypted message, the identification of the sender, and the identification of the first recipient are determined (405) from the decrypted message. The second encrypted message and the identification of the sender are encrypted (409) with a second key, yielding a third encrypted message (109). The third encrypted message (109) is transmitted to the first recipient.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: May 12, 1998
    Assignee: Motorola, Inc.
    Inventor: David Dorenbos