Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904260 | Prosthetic disc containing therapeutic material | Charles D. Ray | 1990-02-27 |
| 4772287 | Prosthetic disc and method of implanting | Charles D. Ray | 1988-09-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904260 | Prosthetic disc containing therapeutic material | Charles D. Ray | 1990-02-27 |
| 4772287 | Prosthetic disc and method of implanting | Charles D. Ray | 1988-09-20 |