Granted Patent
Utility
US 4,306,111 · App. 06/044,288
Simple and effective public-key cryptosystem
Inventors:
Shyue-Ching Lu, Lin-Nan Lee
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: May 31, 1979
Inventors
Shyue-Ching Lu
Lin-Nan Lee
Assignee (at issue)
Communications Satellite Corporation
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.