Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8067342 | Internal breakers for viscoelastic surfactant fluids | Lijun Lin, Carlos Abad | 2011-11-29 |
| 8003577 | Method of treating subterranean formation with crosslinked polymer fluid | Paul R. Howard, Carlos Abad, Michael D. Parris, Lijun Lin, Andrey Mirakyan +2 more | 2011-08-23 |
| 7923414 | Rheology modifier comprising a tetrakis(hydroxyalkyl) phosphonium salt for polymer fluids | Lijun Lin, Mathew M. Samuel, Syed A. Ali | 2011-04-12 |
| 7897547 | Viscoelastic surfactant rheology modifier | Lijun Lin | 2011-03-01 |
| 7893010 | Composition and method for fluid recovery from well | Syed A. Ali, Paul R. Howard, Sumitra Mukhopadhyay | 2011-02-22 |