Granted Patent
Utility
US 6,798,170 · App. 10/071,850
Electrical power source apparatuses, circuits, electrochemical device charging methods, and methods of charging a plurality of electrochemical devices
Inventor:
John Cummings
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Feb 8, 2002
Inventor
John Cummings
Assignee (at issue)
Valence Technology, Inc.
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.