Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7819207 | Mobile land drilling rig and method of installation | — | 2010-10-26 |
| 6695012 | Lubricant coating for expandable tubular members | Lev Ring, Andrei Gregory Filippov, Bill Dean | 2004-02-24 |