Granted Patent
Utility
US 5,495,427 · App. 08/267,709
High speed high resolution ultrasonic position and orientation tracker using a single ultrasonic frequency
Inventors:
Sam C. Puma, Brian D. Brody, Gregory R. Lee
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Jun 29, 1994
Inventors
Sam C. Puma
Brian D. Brody
Gregory R. Lee
Assignee (at issue)
NORTHROP GRUMMAN CORPORATION
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.