Granted Patent
Utility
US 6,757,409 · App. 10/103,106
Method for generating a unique and consistent signal pattern for identification of an individual
Inventors:
John Marshall, David Usher
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Mar 21, 2002
Inventors
John Marshall
David Usher
Assignee (at issue)
Retinal Technologies, L.L.C.
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.