Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5556416 | Endoscopic instrument | George A. Clark, Steven K. Heisel, Arlen L. Johnson, Chris Robinson | 1996-09-17 |
| D344334 | Surgical instrument actuator handle | David H. Dulebohn, Arlen L. Johnson, Sharon F. Dana | 1994-02-15 |