Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8038120 | Magnetically coupled safety valve with satellite outer magnets | James Dan Vick, Jr. | 2011-10-18 |
| 7926573 | Circulation control valve and associated method | Tom Swan | 2011-04-19 |
| 7866402 | Circulation control valve and associated method | — | 2011-01-11 |