The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2009
Filed:
May. 28, 2004
Norbert Leser, Camden, ME (US);
Fajen Kyne, Winchester, MA (US);
Robert Morgan, North Andover, MA (US);
Christopher B. Barclay, Newton, MA (US);
Edward J. Gaudet, Hanover, MA (US);
James Schoonmaker, Arlington, MA (US);
Arnold S. Epstein, Sudbury, MA (US);
Michael D. Smith, Lexington, MA (US);
Norbert Leser, Camden, ME (US);
Fajen Kyne, Winchester, MA (US);
Robert Morgan, North Andover, MA (US);
Christopher B. Barclay, Newton, MA (US);
Edward J. Gaudet, Hanover, MA (US);
James Schoonmaker, Arlington, MA (US);
Arnold S. Epstein, Sudbury, MA (US);
Michael D. Smith, Lexington, MA (US);
Liquid Machines, Inc., Lexington, MA (US);
Abstract
In a network of intermittently-connected computers, a method and apparatus for maintaining and managing control over data objects authored, accessed, and altered by users in dynamic, distributed, and collaborative contexts. The invention method and apparatus attach to each data object an identification of a respective control policy. Each control policy comprises at least an indication of a subset of the users who may access the data object, an indication of the privileges granted to each subset of users able to access the data object, and an indication of a subset of users who may define or edit the control policy. The invention method and apparatus separate the management of the control policies of data objects from the creation and use of the data objects. The invention method and apparatus automate common policy changes, distribution of policy changes to the enforcement agents, and propagation of control policies to derivative works.