Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8021394 | Stenotic device | Michael S. Butler | 2011-09-20 |
| 8021398 | Spinal fixation system | Patrick J. Sweeney, Michael S. Butler | 2011-09-20 |
| 7951151 | Structure for joining and retaining multi-part orthopedic implants | Michael S. Butler | 2011-05-31 |