Granted Patent
Utility
US 6,597,703 · App. 09/450,100
System, device, and method for reducing multicast forwarding states in a multicast communication system
Inventors:
Yunzhou Li, Shuching Shieh
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Nov 29, 1999
Inventors
Yunzhou Li
Shuching Shieh
Assignee (at issue)
Nortel Networks Limited
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.