Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954550 | Tubing pressure insensitive control system | — | 2011-06-07 |
| 7938179 | Method of using a charged chamber pressure transmitter for subterranean tools | Darren E. Bane, Steven L. Jennings, Steve Rosenblatt | 2011-05-10 |