Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10807097 | Vertical shaft impactor | David A. Mogan, James A. Scobey, Patrick Fein, William J. Akers, Brent H. Sebright | 2020-10-20 |
| 9707564 | Vertical shaft impactor | David A. Mogan, James A. Scobey, Patrick Fein, William J. Akers, Brent H. Sebright | 2017-07-18 |