Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7878252 | Dual control line system and method for operating surface controlled sub-surface safety valve in a well | Roddie R. Smith, Stuart M. Dennistoun | 2011-02-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7878252 | Dual control line system and method for operating surface controlled sub-surface safety valve in a well | Roddie R. Smith, Stuart M. Dennistoun | 2011-02-01 |