Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8048348 | Shape memory polyurethane foam for downhole sand control filtration devices | Ping Duan | 2011-11-01 |
| 7926565 | Shape memory polyurethane foam for downhole sand control filtration devices | Ping Duan | 2011-04-19 |
| 7879767 | Additives for hydrate inhibition in fluids gelled with viscoelastic surfactants | Perry D. Baycroft, Allen D. Gabrysch, James B. Crews | 2011-02-01 |