Granted Patent
Utility
US 6,718,209 · App. 10/072,735
Retinal prosthesis with remote return electrode
Inventors:
Richard Williamson, Jerry Ok, Robert J. Greenberg
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Feb 5, 2002
Inventors
Richard Williamson
Jerry Ok
Robert J. Greenberg
Assignee (at issue)
Second Sight Medical Products, 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.