Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954545 | Plunger lift system for well | William Hearn | 2011-06-07 |
| 7926569 | Bypass device for wellbores | Charles David Wintill, William John Darnell, William Ryle Darnell, Rodney Wayne Long | 2011-04-19 |
| 7926580 | Coiled tubing multi-zone jet frac system | William Ryle Darnell, William John Darnell | 2011-04-19 |
| 7926595 | Filter sub | Charles David Wintill, William John Darnell, William Ryle Darnell, Rodney Wayne Long | 2011-04-19 |