Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7108062 | Expandable well screen | John C. Gano, Ralph H. Echols | 2006-09-19 |
| 6776241 | Screen jacket assembly connection and methods of using same | Ralph H. Echols, Perry C. Shy | 2004-08-17 |
| 6530431 | Screen jacket assembly connection and methods of using same | Ralph H. Echols, Perry C. Shy | 2003-03-11 |
| 6457518 | Expandable well screen | John C. Gano, Ralph H. Echols | 2002-10-01 |
| 6412565 | Expandable screen jacket and methods of using same | — | 2002-07-02 |