Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187062 | High density cluster based perforating system and method | James A. Rollins, Philip M. Snider, John T. Hardesty, David S. Wesson | 2021-11-30 |
| 10997443 | User identity verification method, apparatus and system | Le He, Yukun Tuo, Liang Li, Mian Huang, Jidong Chen | 2021-05-04 |
| 10914144 | Proppant transport efficiency system and method | John T. Hardesty, James A. Rollins, Kevin Wutherich, Ross Harvey | 2021-02-09 |