Granted Patent
Utility
US 6,791,980 · App. 09/428,377
System, device, and method for reducing the number of multicast routes maintained in a multicast routing information base
Inventor:
Yunzhou Li
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Oct 28, 1999
Inventor
Yunzhou Li
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.