Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5632729 | Catheter connector | Qingsheng Cai, William L. Beling, Theodore A. Johnson | 1997-05-27 |
| 5613945 | Portal assembly | Qingsheng Cai, William L. Beling, Theodore A. Johnson | 1997-03-25 |