Granted Patent
Utility
US 6,549,004 · App. 09/809,999
Distributed magnetic field positioning system using code division multiple access
Inventor:
Eric A. Prigge
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Mar 14, 2001
Inventor
Eric A. Prigge
Assignee (at issue)
The Board of Trustees of the Leland Stanford Junior University
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.