Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6609578 | Shale hydration inhibition agent and method of use | Emanual Stamatakis, Eric A. Davis | 2003-08-26 |
| 6589917 | Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility | Jim Friedheim | 2003-07-08 |