Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6457517 | Composite landing collar for cementing operation | Jim Goodson, Paul Zutz, Yusheng Yuan | 2002-10-01 |
| 6431277 | Liner hanger | James D. Cox, Jr., John L. Baugh, George Givens, Rodney D. Bennett, Timothy Wootan | 2002-08-13 |