Granted Patent
Utility
US 6,233,337 · App. 09/059,116
Methods and apparatus for enhanced security expansion of a secret key into a lookup table for improved security for wireless telephone messages
Inventors:
Mark H. Etzel, Robert John Frank, Daniel Nelson Heer, Robert Joseph McNelis, Semyon B. Mizikovsky, Robert J. Rance, R. Dale Shipp
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Apr 13, 1998
Inventors
Mark H. Etzel
Robert John Frank
Daniel Nelson Heer
Robert Joseph McNelis
Semyon B. Mizikovsky
Robert J. Rance
R. Dale Shipp
Assignee (at issue)
LUCENT TECHNOLOGIES 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.