Granted Patent
Utility
US 6,434,156 · App. 09/122,433
Virtual switching for interconnected networks
Inventor:
Chiang Yeh
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Jul 24, 1998
Inventor
Chiang Yeh
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.