Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776070 | Iron roughneck | David Mason, Johannes Kamp, Ronaldus Roling | 2004-08-17 |
| 6763887 | Drill pipe having an internally coated electrical pathway | — | 2004-07-20 |
| 6691801 | Load compensator for a pipe running tool | Daniel Juhasz, Brian L. Eidem, Hans van Rijzingen | 2004-02-17 |