Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11059008 | Revolving chamber oscillation mixing devices and associated methods | Karl William Yost | 2021-07-13 |
| 10960444 | Closure methods for mines | Karl William Yost, William H. Simon | 2021-03-30 |