Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5879401 | Acetabular trial | John W. Besemer, Salvatore Caldarise, Frank Foley, Allan Ritchie, Anthony P. Sanders | 1999-03-09 |
| 5871549 | Femoral stem with reduced coefficient of friction with respect to bone cement | Frank Matthews, Jorge Ochoa | 1999-02-16 |