Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782946 | Method and apparatus for injecting one or more fluids into a borehole | Douglas A. Lillico, Kevin Rispler | 2004-08-31 |
| 6484805 | Method and apparatus for injecting one or more fluids into a borehole | Douglas A. Lillico, Kevin Rispler | 2002-11-26 |
| 5836391 | Wellbore sand control method | Ralph George Jonasson, Kevin Rispler | 1998-11-17 |