Granted Patent
Utility
US 6,389,532 · App. 09/063,630
Method and apparatus for using digital signatures to filter packets in a network
Inventors:
Amit Gupta, Radia J. Perlman
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Apr 20, 1998
Inventors
Amit Gupta
Radia J. Perlman
Assignee (at issue)
Sun Microsystems 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.