Granted Patent
Utility
US 6,405,923 · App. 09/673,657
Method for secure distribution of data
Inventor:
Martin Seysen
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Feb 26, 2001
Inventor
Martin Seysen
Assignee (at issue)
GIESECKE & DEVRIENT GMBH
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.