Patents by Inventor Al N. Kepner

Al N. Kepner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Domain independent shell for building a diagnostic expert system
    Patent number: 4866635
    Abstract: An application shell provides a domain independent diagnostic problem solver comprised of a knowledge base. The knowledge base includes a plurality of failure mode schemata arranged in a causal hierarchy from observable failure modes to failure modes having a repair procedure; a plurality of rule schemata related to certain of said failure mode schemata; a plurality of datum schemata for gathering data about the system under investigation, the information being used to determine the applicability of said rule schemata; and a plurality of repair procedure schemata each being related to one of the failure mode schemata having a repair procedure.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: September 12, 1989
    Assignee: Carnegie Group Inc.
    Inventors: Gary S. Kahn, Jeffrey A. Pepper, Al N. Kepner, William Richer, Rajiv Enand