Patent · US Active

Information rights management

US7913309B2 · kind B2 · utility

21Cited by

0References

20Claims

0Family size

Assignee

Microsoft Corporation · US

Inventors

Dmitry Starostin · Aachen, DE
Joris Claessens · Aachen, DE
Alexey V. Orlov · Aachen, DE

Key dates

Filing date	Jun 13, 2007
Grant date	Mar 22, 2011
Priority date	—
Expiry date	Jan 3, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/10
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Information rights management (IRM) systems enable information to be protected after it has been accessed by or delivered to an authorized individual. For example, this might be to allow an email to be viewed for a limited time by specified individuals but to prevent that email from being forwarded. However, existing IRM systems are limited in the situations in which they may operate. An IRM server is provided which communicates with one or more policy evaluators which are independent of the IRM server. Results from the different policy evaluators may be combined by the IRM server and one or more identity providers may be used in conjunction with each policy evaluator. By enabling the IRM server to act as a broker between authors, recipients and policy evaluators situations in which IRM systems may operate are greatly extended.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.