Granted Patent
Utility
US 5,939,879 · App. 08/867,732
Magnetic encoder for sensing position and direction via a time and space modulated magnetic field
Inventors:
Sidney A. Wingate, Christopher Liessner, John Sotir
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Jun 2, 1997
Inventors
Sidney A. Wingate
Christopher Liessner
John Sotir
Assignee (at issue)
Dynamics Research 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.