Granted Patent
Utility
US 6,266,136 · App. 09/503,708
Position tracking system
Inventors:
David P. Ramer, Jack C. Rains, Jr.
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Feb 14, 2000
Inventors
David P. Ramer
Jack C. Rains, Jr.
Assignee (at issue)
Advanced Optical Technologies, 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.