Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11387014 | Torque-balanced, gas-sealed wireline cables | Joseph Varkey, Sheng Chang, Byong Jun Kim, Jushik Yun | 2022-07-12 |
| 11315706 | Downhole cable and method of making a downhole cable | Joseph Varkey, Dong Yang, Sheng Chang, Qingdi Huang | 2022-04-26 |