Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10689581 | Biochar products and production | Samuel C. Weaver, Daniel L. Hensley, Jim Bierkamp, Neal Evans, Will Johnson +4 more | 2020-06-23 |
| 9890332 | Biochar products and production | Samuel C. Weaver, Daniel L. Hensley, Jim Bierkamp, Neal Evans, Will Johnson +4 more | 2018-02-13 |