Granted Patent
Utility
US 6,504,339 · App. 09/779,772
Technique and apparatus to control the charging of a battery using a fuel cell
Inventors:
John Parks, Dustan Skidmore, Edward Hardwicke, James G. Hoehn, Jr.
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Feb 8, 2001
Inventors
John Parks
Dustan Skidmore
Edward Hardwicke
James G. Hoehn, Jr.
Assignee (at issue)
Plug Power 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.