Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588508 | Method and apparatus to reduce trapped pressure in a downhole tool | Robert A. Parrott, Anthony P. Vovers, Cynthia L. Hickson, Harry B. Anderson, John Corben | 2003-07-08 |
| 6523449 | Perforating gun | Alfredo Fayard, Robert A. Parrott | 2003-02-25 |