Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776241 | Screen jacket assembly connection and methods of using same | Ana M. Castano-Mears, Ralph H. Echols | 2004-08-17 |
| 6722427 | Wear-resistant, variable diameter expansion tool and expansion methods | John C. Gano, Kenneth L. Schwendemann, Darrin N. Towers, Ralph H. Echols | 2004-04-20 |