Patents by Inventor Ben Kavanah

Ben Kavanah 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).

  • Certificate handling for digital rights management system
    Patent number: 6513117
    Abstract: A delivery system for managing security keys uses three key pairs to establish, register, move and revoke rights in a device to view protected information. The first and second key pairs cooperate to establish a secure certificate containing a device public and private key, and the pairs of keys are manipulated to install the appropriate keys in the device and the associated authentication server without ever exposing the keys. Thereafter, in the event of a need to authorize a new device to view content associated with a prior, authorized device, the key pairs are used to revoke the rights of an old device and establish identical viewing rights in the new device.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: January 28, 2003
    Assignee: Gemstar Development Corporation
    Inventors: Marc Tarpenning, Ben Kavanah, Brian Slesinsky
  • CERTIFICATE HANDLING FOR DIGITAL RIGHTS MANAGEMENT SYSTEM
    Publication number: 20020007454
    Abstract: A delivery system for managing security keys uses three key pairs to establish, register, move and revoke rights in a device to view protected information. The first and second key pairs cooperate to establish a secure certificate containing a device public and private key, and the pairs of keys are manipulated to install the appropriate keys in the device and the associated authentication server without ever exposing the keys. Thereafter, in the event of a need to authorize a new device to view content associated with a prior, authorized device, the key pairs are used to revoke the rights of an old device and establish identical viewing rights in the new device.
    Type: Application
    Filed: October 7, 1998
    Publication date: January 17, 2002
    Inventors: MARC TARPENNING, BEN KAVANAH, BRIAN SLESINSKY