Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7988205 | Wedge thread with torque shoulder | David Llewellyn Mallis | 2011-08-02 |
| 7967959 | Cathodic protection method and apparatus | Donald Paul Howard | 2011-06-28 |
| 7942454 | Threads with perturbations | — | 2011-05-17 |