Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9683159 | Additive for drilling fluid used as a sealing agent to reduce seepage loss and fluid loss in subterranean wellbores | Marwin K. Kemp, Johnnie M. Kelley, Graham A. Wilson | 2017-06-20 |
| 9550932 | Additive for drilling fluid used as a shale stabilizing agent in subterranean wellbores | Marwin K. Kemp, Johnnie M. Kelley, Graham A. Wilson | 2017-01-24 |