Granted Patent
Utility
US 6,636,838 · App. 09/511,542
Content screening with end-to-end encryption
Inventors:
Radia J. Perlman, Stephen R. Hanna, Yassir K. Elley
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Feb 23, 2000
Inventors
Radia J. Perlman
Stephen R. Hanna
Yassir K. Elley
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.