Granted Patent
Utility
US 6,068,012 · App. 09/221,601
Performance-based control system
Inventors:
Edward S. Beardwood, George F. Hays, James George Knudsen
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Dec 29, 1998
Inventors
Edward S. Beardwood
George F. Hays
James George Knudsen
Assignee (at issue)
Ashland, 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.