Granted Patent
Utility
US 6,168,705 · App. 09/149,608
Electrochemical gas purifier
Inventors:
Trent M. Molter, William F. Smith
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Sep 8, 1998
Inventors
Trent M. Molter
William F. Smith
Assignee (at issue)
PROTON ENERGY SYSTEMS, 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.