Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D840032 | Surgical drill | Steven T. Clifford, James K. Beachnau, Craig E. Volstromer, Benjamin J. Purrenhage | 2019-02-05 |
| D831212 | Surgical saw | Steven T. Clifford, James K. Beachnau, Craig E. Volstromer, Benjamin J. Purrenhage | 2018-10-16 |