Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8016295 | Helical backup element | Randall V. Guest, Justin P. Vinson, Dennis E. Kroll | 2011-09-13 |
| 7921921 | Downhole backup system and method | David S. Bishop | 2011-04-12 |
| 7861778 | Pressure orienting swivel arrangement and method | Jeffery D. Kitzman, Wesley Charles Byrne, Justin P. Vinson | 2011-01-04 |