Patents by Inventor Patric Dahl

Patric Dahl 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).

  • Digital rights management system on a virtual private network
    Publication number: 20030225854
    Abstract: The invention is a method and a network providing efficient and controlled DRM of digital rights within one or more VPNs (12). A network (10) in accordance with the invention includes at least one digital rights user (18 and 20), each digital rights user being a user of digital rights, a DRR (30) of the digital rights, a VPN (12), a DRDS (32), coupled to the at least one DRU, and to the storage, which distributes the digital rights to the at least one DRU, and a DRPM (34), coupled to the DRDS which controls providing of the digital rights stored in the DRR to the at least one DRU.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 4, 2003
    Inventors: Peng Zhang, Zheng Yan, Patric Dahl