Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069926 | Method of controlling flow through a drill string using a valve positioned therein | Hazel Farquhar | 2011-12-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069926 | Method of controlling flow through a drill string using a valve positioned therein | Hazel Farquhar | 2011-12-06 |