Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954546 | Subterranean screen with varying resistance to flow | Namhyo Kim, Yang Xu, Michael H. Johnson, Bennett M. Richard | 2011-06-07 |
| 7938179 | Method of using a charged chamber pressure transmitter for subterranean tools | Darren E. Bane, Steven L. Jennings, David Z. Anderson | 2011-05-10 |