Granted Patent
Utility
US 6,389,534 · App. 08/940,449
Cryptographic policy filters and policy control method and apparatus
Inventors:
Taher Elgamal, Jeff Weinstein, Robert Relyea
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Sep 30, 1997
Inventors
Taher Elgamal
Jeff Weinstein
Robert Relyea
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.