Granted Patent
Utility
US 6,094,722 · App. 09/010,606
Hiding a authentication code in an electric signal
Inventors:
Jaakko Astola, Pauli Kuosmanen
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Jan 22, 1998
Inventors
Jaakko Astola
Pauli Kuosmanen
Assignee (at issue)
Nokia Technology
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.