Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 8176986 | Method of circulating while retrieving bottom hole assembly in casing | Tommy M. Warren, Preston T. Honeycutt | 2012-05-15 | $6,579,000 |
| 7926578 | Liner drilling system and method of liner drilling with retrievable bottom hole assembly | Michael E. Moffitt | 2011-04-19 | $3,267,000 |
| 7926590 | Method of liner drilling and cementing utilizing a concentric inner string | Erik P. Eriksen | 2011-04-19 | $3,267,000 |
| 7845417 | Method of circulating while retrieving downhole tool in casing | Tommy M. Warren, Preston T. Honeycutt | 2010-12-07 | $2,454,000 |
| 7784552 | Liner drilling method | — | 2010-08-31 | $1,756,000 |