Whitfill; Donald
Patent Applications and Registrations
Patent applications and USPTO patent grants for Whitfill; Donald.The latest application filed is for "mixing process and delivery of lost circulation slurries".
- Whitfill; Donald - Kingwood TX
- WHITFILL; Donald - Houston TX
| Patent | Date |
|---|---|
| Mixing Process And Delivery Of Lost Circulation Slurries App 20200157894 - Whitfill; Donald ; et al. | 2020-05-21 |
| Drilling Fluid That When Mixed With A Cement Composition Enhances Physical Properties Of The Cement Composition App 20140256602 - RAVI; Krishna ; et al. | 2014-09-11 |
| Variable Pressure Weighting Material Particles App 20120196777 - Reddy; B. Raghava ; et al. | 2012-08-02 |
| Variable density treatment fluids Grant 8,202,824 - Reddy , et al. June 19, 2 | 2012-06-19 |
| Variable Density Treatment Fluids App 20090163388 - Reddy; B. Raghava ; et al. | 2009-06-25 |
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