Granted Patent
Utility
US 5,720,009 · App. 08/735,153
Method of rule execution in an expert system using equivalence classes to group database objects
Inventors:
Steven A. Kirk, William Barabash, William S. Yerazunis
Patented Case
View Patent ↗
Granted: Feb 17, 1998
Filed: Oct 24, 1996
Inventors
Steven A. Kirk
William Barabash
William S. Yerazunis
Assignee (at issue)
Digital Equipment Corporation
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.