Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6637517 | Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations | Frank F. Chang, Roger J. Card, Ronnie L. Thomas | 2003-10-28 |
| 6605570 | Compositions and methods to control fluid loss in surfactant-based wellbore service fluids | Matthew J. Miller, Palathinkara S. Vinod, Thomas Olsen | 2003-08-12 |