Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674295 | Prosthetic spinal disc nucleus | Charles D. Ray, Philip J. Ledoux, Beth A. Frutiger | 1997-10-07 |
| 5665111 | Method for anchoring a surgical suture to bone | Charles D. Ray | 1997-09-09 |
| 5649945 | Spinal anulus cutter | Charles D. Ray | 1997-07-22 |