Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10435611 | Methods for producing emulsifiers for oil-based drilling fluids | John B. Hines, Roger Scott Johnson, David T. Mpofu, Nathan P. Rife, Anne M. Cothran | 2019-10-08 |
| 10307770 | Method for the benificiation of coal | John B. Hines, Dennis L. Kennedy | 2019-06-04 |