Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8076271 | Aqueous tackifier and methods of controlling particulates | Thomas D. Welton, Philip D. Nguyen | 2011-12-13 |
| 7939474 | Wellbore fluids containing additives for removing a filter cake and methods of using the same | David W. Ritter, Sanjay Vitthal, R. Ashley Donaldson | 2011-05-10 |
| 7874360 | Methods for improving low-quality proppant and method of using low-quality proppant in subterranean operations | Thomas D. Welton, Philip D. Nguyen | 2011-01-25 |