Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667280 | Fluid system having controllable reversible viscosity | Frank F. Chang, Qi Qu | 2003-12-23 |
| 6660693 | Methods for dewatering shaly subterranean formations | Curtis L. Boney, Kevin W. England, Jerald J. Hinkel | 2003-12-09 |
| 6605570 | Compositions and methods to control fluid loss in surfactant-based wellbore service fluids | Mathew M. Samuel, Palathinkara S. Vinod, Thomas Olsen | 2003-08-12 |