Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439313 | Downhole machining of well completion equipment | Hubertus V. Thomeer, James M. Costley, Randolph J. Sheffield, David Milton Eslinger, Mark Callister Oettli | 2002-08-27 |