Granted Patent
Utility
US 6,133,870 · App. 09/342,846
Ephemeris determination using intersatellite ranging and ephemeris knowledge of other satellites
Inventor:
James W. Wehner
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jun 29, 1999
Inventor
James W. Wehner
Assignee (at issue)
TRW Limited
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.