Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7473243 | Surgical instrument seal assembly | William G. Dennis | 2009-01-06 |
| 7056303 | Surgical instrument seal assembly | William G. Dennis | 2006-06-06 |
| 6258065 | Surgical instrument seal assembly | William G. Dennis | 2001-07-10 |
| 6228058 | Sleeve trocar with penetration indicator | William G. Dennis | 2001-05-08 |