Granted Patent
Utility
US 6,728,646 · App. 09/940,400
Energy information system and sub-measurement board for use therewith
Inventors:
Donald W. Howell, Frank O. Blevins, Armand J. Tamagni, Jr.
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Aug 27, 2001
Inventors
Donald W. Howell
Frank O. Blevins
Armand J. Tamagni, Jr.
Assignee (at issue)
Enerwise Global Technologies, LLC
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.