Granted Patent
Utility
US 5,331,637 · App. 08/100,634
Multicast routing using core based trees
Inventors:
Paul T. Francis, Anthony Ballardie, Jonathan A. Crowcroft
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Jul 30, 1993
Inventors
Paul T. Francis
Anthony Ballardie
Jonathan A. Crowcroft
Assignee (at issue)
Bell Communications Research, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.