Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5937955 | Method and apparatus for sealing a well bore and sidetracking a well from the well bore | Daniel Scott Stoltz | 1999-08-17 |
| 5860474 | Through-tubing rotary drilling | Daniel Scott Stoltz | 1999-01-19 |
| 5806596 | One-trip whipstock setting and squeezing method | Mel Hardy, Brent E. Henderson, Joe Jordan, Aurelio Azuara | 1998-09-15 |