Granted Patent
Utility
US 5,058,043 · App. 07/333,536
Batch process control using expert systems
Inventor:
Richard D. Skeirik
Patented Case
View Patent ↗
Granted: Oct 15, 1991
Filed: Apr 5, 1989
Inventor
Richard D. Skeirik
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.