Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8042616 | Apparatus and methods for drilling a wellbore using casing | Richard L. Giroux, Gregory G. Galloway, Tuong Thanh Le, Gregory R. Nazzal, James C. Swarr +8 more | 2011-10-25 |