Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7926569 | Bypass device for wellbores | Charles David Wintill, William Ryle Darnell, Rodney Wayne Long, Todd Ulrich Chretien | 2011-04-19 |
| 7926580 | Coiled tubing multi-zone jet frac system | William Ryle Darnell, Todd Ulrich Chretien | 2011-04-19 |
| 7926595 | Filter sub | Charles David Wintill, William Ryle Darnell, Rodney Wayne Long, Todd Ulrich Chretien | 2011-04-19 |
| 7921922 | Formation saver sub and method | Charles David Wintill, Rodney Wayne Long | 2011-04-12 |