Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8278252 | Nano-sized particles for stabilizing viscoelastic surfactant fluids | James B. Crews, Tianping Huang, John R. Willingham | 2012-10-02 |
| 8188015 | Methods and compositions for fracturing subterranean formations | James B. Crews, Tianping Huang, Allen D. Gabrysch, John R. Willingham, Patrick A. Kelly +1 more | 2012-05-29 |
| 7723272 | Methods and compositions for fracturing subterranean formations | James B. Crews, Tianping Huang, Allen D. Gabrysch, John R. Willingham, Patrick A. Kelly +1 more | 2010-05-25 |
| 7550413 | Fluid loss control agents for viscoelastic surfactant fluids | Tianping Huang, James B. Crews | 2009-06-23 |
| 7343972 | System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants | John R. Willingham, Allen D. Gabrysch, Patrick A. Kelly, James B. Crews | 2008-03-18 |