Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644401 | Slip type casing hanger with integral high pressure isolation plate | — | 2003-11-11 |
| 6557644 | Adjustable tubing hanger assembly | Ralph A. Alvarez | 2003-05-06 |
| 6550537 | Tension latching system | Ralph A. Alvarez | 2003-04-22 |