Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618297 | Obturator with internal tip protector | Charles C. Hart, Vincent C. Tangherlini | 1997-04-08 |
| 5599347 | Surgical trocar with cutoff circuit | Charles C. Hart, Martin V. Shabaz, Mark A. Ritchart | 1997-02-04 |