Granted Patent
Utility
US 6,167,690 · App. 09/110,898
Control system for controlling at least one variable of a process as well as a use of such a control system
Inventors:
Stephan Hepner, Andrew Wihler
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Jul 7, 1998
Inventors
Stephan Hepner
Andrew Wihler
Assignee (at issue)
Asea Brown Boveri, S.A.
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.