Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9843244 | Nitrogen- and ceramic-surface-treated components for downhole motors and related methods | Chih Lin, Denis S. Kopecki | 2017-12-12 |
| 9816351 | Multi-stage cementing tool and method | Brent J. Lirette, Tyler Tinnin, Michael Lynn Betik, Chris Lovelady | 2017-11-14 |