Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7998909 | Foaming agent for subterranean formations treatment, and methods of use thereof | Lijun Lin, Carlos Abad, Bruno Drochon, Gregory Kubala, Alejandro Pena +1 more | 2011-08-16 |
| 7947627 | Fluid loss control agent with triggerable removal mechanism | Ann M. W. Hoefer | 2011-05-24 |
| 7832476 | Downhole release of friction reducers in gravel packing operations | Carlos Abad | 2010-11-16 |
| 7631695 | Wellbore zonal isolation system and method | John R. Whitsitt | 2009-12-15 |
| 7287593 | Methods of fracturing formations using quaternary amine salts as viscosifiers | Richard D. Hutchins | 2007-10-30 |