Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851291 | Coated particles, methods for their manufacture and for their use as proppants | Kenneth R. Riddle, Michael T. Wellman | 2020-12-01 |
| 10647911 | Coated particles, methods for their manufacture and for their use as proppants | Kenneth R. Riddle, Michael T. Wellman | 2020-05-12 |