Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8028748 | Tubular control apparatus | Burney J. Laitolais, Jr., David Stokes, Dougal Hugo Brown | 2011-10-04 |
| 7878241 | Expandable centralizer for expandable pipe string | Eugene Edward Miller, Donald Elwin McDowell | 2011-02-01 |