Patents by Inventor Karlton Mark Zeitz

Karlton Mark Zeitz 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).

  • Patent number: 7725716
    Abstract: Methods and systems for securely requesting, retrieving, sending, and storing files. One aspect involves receiving a request for a file from a client device that identifies a user and the client device, encrypting the file using a session key based at least in part on the user and the client device, and transmitting the encrypted file to the client device. Other aspects of the invention include storing the encrypted file on the client device in encrypted form such that the file may only be decrypted or accessed by the particular user on that particular client device.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: May 25, 2010
    Assignee: Japan Communications, Inc.
    Inventors: Justin Owen Tidwell, Karlton Mark Zeitz