Granted Patent
Utility
US 5,799,089 · App. 08/624,541
System and apparatus for blockwise encryption/decryption of data
Inventors:
Gideon Jacobus Kuhn, Donald W. Davies, Simon Paul Ashley Rix
Patented Case
View Patent ↗
Granted: Aug 25, 1998
Filed: Apr 12, 1996
Inventors
Gideon Jacobus Kuhn
Donald W. Davies
Simon Paul Ashley Rix
Assignee (at issue)
IRDETO B.V.
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.