Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10597570 | Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions | Phillip W. Hurd, Jalandar Jadhav | 2020-03-24 |
| 9657212 | Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions | Phillip W. Hurd, Jalandar Jadhav | 2017-05-23 |
| 8927468 | Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions | Phillip W. Hurd, Jalandar Jadhav | 2015-01-06 |
| 8334363 | Oxidized and maleated compounds and compositions | Phillip W. Hurd, Brett Neumann, John B. Hines | 2012-12-18 |
| 8258084 | Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions | Phillip W. Hurd, Jalandar Jadhav | 2012-09-04 |
| 8071715 | Maleated and oxidized fatty acids | Phillip W. Hurd, Brett Neumann | 2011-12-06 |
| 4776985 | Alkoxylated rosin amides | Gene E. Keyser | 1988-10-11 |