Issued Patents All Time
Showing 76–96 of 96 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7655603 | Clean-up additive for viscoelastic surfactant based fluids | — | 2010-02-02 |
| 7645724 | Compositions and use of mono- and polyenoic acids for breaking VES-gelled fluids | — | 2010-01-12 |
| 7615517 | Use of mineral oils to reduce fluid loss for viscoelastic surfactant gelled fluids | Tianping Huang | 2009-11-10 |
| 7595284 | Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants | — | 2009-09-29 |
| 7550413 | Fluid loss control agents for viscoelastic surfactant fluids | Tianping Huang, James H. Treadway | 2009-06-23 |
| 7543644 | Concentrated suspension of particulate additives for fracturing and other fluids | Tianping Huang, John R. Willingham | 2009-06-09 |
| 7543646 | Suspension of concentrated particulate additives containing oil for fracturing and other fluids | Tianping Huang | 2009-06-09 |
| 7530393 | Friction loss reduction in viscoelastic surfactant fracturing fluids using low molecular weight water-soluble polymers | William R. Wood | 2009-05-12 |
| 7527103 | Procedures and compositions for reservoir protection | Tianping Huang | 2009-05-05 |
| 7527102 | Methods and compositions for diverting acid fluids in wellbores | Tianping Huang | 2009-05-05 |
| 7347266 | Use of mineral oils, hydrogenated polyalphaolefin oils and saturated fatty acids for breaking ves-gelled fluids | John R. Willingham | 2008-03-25 |
| 7343972 | System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants | John R. Willingham, Allen D. Gabrysch, Patrick A. Kelly, James H. Treadway | 2008-03-18 |
| 7256160 | Fracturing fluids for delayed flow back operations | — | 2007-08-14 |
| 7208529 | Aminocarboxylic acid breaker compositions for fracturing fluids | — | 2007-04-24 |
| 7160842 | Polyols for breaking of fracturing fluid | — | 2007-01-09 |
| 7084093 | Catalyzed polyol gel breaker compositions | — | 2006-08-01 |
| 7078370 | Biodegradable chelant compositions for fracturing fluid | — | 2006-07-18 |
| 7052901 | Bacteria-based and enzyme-based mechanisms and products for viscosity reduction breaking of viscoelastic fluids | — | 2006-05-30 |
| 6706769 | Aminocarboxylic acid breaker compositions for fracturing fluids | — | 2004-03-16 |
| 6642185 | Borate crosslinked fracturing fluid viscosity reduction breaker mechanism and products | — | 2003-11-04 |
| 6617285 | Polyols for breaking of borate crosslinked fracturing fluid | — | 2003-09-09 |