Granted Patent
Utility
US 4,967,368 · App. 07/371,434
Expert system with knowledge base having term definition hierarchy
Inventors:
Richard Winfield Bolling, Louis P. Tychonievich, Geoffrey E. Margrave, David F. Shannon, Eric Rustici
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Jun 5, 1989
Inventors
Richard Winfield Bolling
Louis P. Tychonievich
Geoffrey E. Margrave
David F. Shannon
Eric Rustici
Assignee (at issue)
Wang Laboratories, 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.