Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10005947 | Modified hydrocarbon resins as fluid loss additives | Nathan P. Rife | 2018-06-26 |
| 9868891 | Methods for producing emulsifiers for oil-based drilling fluids | John B. Hines, Roger Scott Johnson, David T. Mpofu, Nathan P. Rife, Anne M. Cothran | 2018-01-16 |