Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943932 | Architecture for composing computational modules uniformly across diverse developmental frameworks | Lee D. Erman, Michael Fehling, Frederick Hayes-Roth | 1990-07-24 |
| 4658370 | Knowledge engineering tool | Lee D. Erman, William J. Clancey, Philip E. London, A. Carlisle Scott, James S. Bennett | 1987-04-14 |
| 4591983 | Hierarchical knowledge system | James S. Bennett | 1986-05-27 |