Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8028750 | Force balanced rotating pressure control device | Murl Ray Richardson, Thomas L. Pettigrew, Kurt D. Vandervort, Kenneth D. Young | 2011-10-04 |
| 7981379 | Producing nitrogen to use in under balanced drilling, secondary recovery production operations and pipeline maintenance | Mark Dunbar | 2011-07-19 |