Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5556434 | Replacement hip joint | Norman Epstein | 1996-09-17 |
| 5549689 | Prosthetic knee | Norman Epstein | 1996-08-27 |
| 5514183 | Reduced friction prosthetic knee joint utilizing replaceable roller bearings | Norman Epstein | 1996-05-07 |