Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676701 | Low wear artificial spinal disc | Hansen Yuan, Chih-I Lin, James A. Davidson, Thomas A. Carls | 1997-10-14 |
| 5486176 | Angled bone fixation apparatus | Bryan Hildebrand, Hansen Yuan, B. Thomas Barker, Matthew M. Morrison, Abraham Biglari Salehi +1 more | 1996-01-23 |
| 5129899 | Bone fixation apparatus | David L. Brumfield, James W. Simmons | 1992-07-14 |