Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9834715 | Dual-purpose viscosifier and surface active additives and methods of use | Jim D. Weaver | 2017-12-05 |
| 9816022 | Ampholyte polymeric compounds in subterranean applications | HsinChen Chung, Yuntao Thomas Hu, Xiangnan Ye, Narongsak Tonmukayakul, Kevin W. Frederick +2 more | 2017-11-14 |
| 9695350 | Ampholyte polymeric compounds in subterranean applications | HsinChen Chung, Yuntao Thomas Hu, Xiangnan Ye, Narongsak Tonmukayakul, Kevin W. Frederick +2 more | 2017-07-04 |