Issued Patents All Time
Showing 1–3 of 3 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 | Nantelle P. Kemp, Johnnie M. Kelley, Graham A. Wilson | 2017-06-20 |
| 9550932 | Additive for drilling fluid used as a shale stabilizing agent in subterranean wellbores | Nantelle P. Kemp, Johnnie M. Kelley, Graham A. Wilson | 2017-01-24 |
| 5119315 | Method of correlating a record of sample data with a record of reference data | William A. Cooper, David L. Dolcater | 1992-06-02 |