Granted Patent
Utility
US 6,589,686 · App. 10/039,544
Method of fuel cell activation
Inventors:
Stanford R. Ovshinsky, Boyko Aladjov, Srinivasan Venkatesan, Subhash Dhar, Thomas Hopper, Kevin Fok
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Jan 8, 2002
Inventors
Stanford R. Ovshinsky
Boyko Aladjov
Srinivasan Venkatesan
Subhash Dhar
Thomas Hopper
Kevin Fok
Assignee (at issue)
Ovonic Battery Company, 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.