Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10751885 | Gripper assembly for portable biochar kiln | Mikel S. Olander, Perry H. Pierce, William T. Beierwaltes, Donald P. Aupperle | 2020-08-25 |
| 10527282 | Managed biochar kiln | Donald P. Aupperle, Mikel S. Olander, Benjamin M. Beierwaltes, William T. Beierwaltes | 2020-01-07 |