Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8286715 | Coated sleeved oil and gas well production devices | Jeffrey R. Bailey, Erika Ann Ooten Biediger, Narasimha-Rao Venkata Bangaru, Adnan Ozekcin, Hyun-Woo Jin +5 more | 2012-10-16 |
| 8220563 | Ultra-low friction coatings for drill stem assemblies | Narasimha-Rao Venkata Bangaru, Adnan Ozekcin, Hyun-Woo Jin, Erika Ann Ooten Biediger, Jeffrey R. Bailey +2 more | 2012-07-17 |