Patents by Inventor Rolf Oppliger

Rolf Oppliger 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).

  • Distributed registration and key distribution system and method
    Patent number: 6002768
    Abstract: An online conference session management system includes computer sites associated with a conference session holder, a plurality of service providers and a plurality of conference session participants. The conference session holder and each service provider has a respective associated public/private key pair for a specified online conference session. Each service provider is provided with an active participant registration certificate that gives the service provider the authority to register participants of the specified conference session, as well as authority to register other service providers as active participants of the specified conference session by providing those other service providers with respective active participant registration certificates.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: December 14, 1999
    Assignee: International Computer Science Institute
    Inventors: Andres Albanese, Rolf Oppliger