Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975983 | System, method and apparatus for split gate valve with mechanically isolated seal surfaces | David Daniel Comeaux, Robert Kevin Law | 2011-07-12 |
| 7909105 | Independent wellhead drilling adapter | Eugene Borak, Vanson Huynh | 2011-03-22 |