Patents by Inventor Richard Eizenhoefer

Richard Eizenhoefer 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).

  • Publication number: 20070016532
    Abstract: A plurality of digital licenses correspond to a piece of content, including a base license and at least one add-on license. Each add-on license includes a reference to the base license, and each of the base license and each add-on license sets forth rules specifying how the content may be employed. Each add-on license is identified by way of the reference therein to the base license, and the rules in the base license and in each identified add-on license are aggregated into an aggregated set of rules that is evaluated to determine if such aggregated set of rules allows employing the content in a particular manner.
    Type: Application
    Filed: October 26, 2005
    Publication date: January 18, 2007
    Applicant: Microsoft Corporation
    Inventors: Ning Zhang, Richard Eizenhoefer, Wen-Pin Hsu