Granted Patent
Utility
US 6,690,960 · App. 10/104,256
Video-based surgical targeting system
Inventors:
David Chen, Steven D. Pieper, Michael A. McKenna
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Mar 21, 2002
Inventors
David Chen
Steven D. Pieper
Michael A. McKenna
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.