Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6536520 | Top drive casing system | Randy Gene Snider, David Shahin, Jim Allen, Gary Thompson | 2003-03-25 |
| 6536525 | Methods and apparatus for forming a lateral wellbore | David M. Haugen, Frederick T. Tilton, Neil A. A. Simpson, Robert P. Badrak, David J. Brunnert | 2003-03-25 |