Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6966375 | Downhole surge pressure reduction and filtering apparatus | Clayton Stanley Pluchek, Richard L. Giroux, Thad Scott, David M. Haugen | 2005-11-22 |
| 6908121 | Locking arrangement for a threaded connector | David Hirth, Tarald Gudmestad, Mark J. Murray | 2005-06-21 |
| 6902008 | Bi-directionally boosting and internal pressure trapping packing element system | David Hirth, Tarald Gudmestad | 2005-06-07 |
| 6866100 | Mechanically opened ball seat and expandable ball seat | Tarald Gudmestad, David Hirth | 2005-03-15 |