Patents Assigned to Raff Enterprises, Inc.
  • User adaptable expert system
    Patent number: 5481647
    Abstract: There is disclosed an expert system using an inference engine which allows for user defined rules. The rules are stored as external data to the engine and provide for forward and backward chaining so that the rules operate through each other. The system includes the use of pseudo variables selectable and changeable by a user.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: January 2, 1996
    Assignee: Raff Enterprises, Inc.
    Inventors: Bill E. Brody, Steven B. Cudd, Ronald M. Rose