Granted Patent
Utility
US 5,767,669 · App. 08/663,774
Magnetic field position and orientation measurement system with dynamic eddy current rejection
Inventors:
Per K. Hansen, Westley S. Ashe
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: Jun 14, 1996
Inventors
Per K. Hansen
Westley S. Ashe
Assignee (at issue)
Ascension Technology 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.