Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D939269 | Silicone lid | — | 2021-12-28 |
| 11136491 | Iron sulfide removal in oilfield applications | Qiwei Wang, Fakuen Frank Chang | 2021-10-05 |
| 11078408 | Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency | Leiming Li, Feng Liang | 2021-08-03 |
| 11041378 | Method and apparatus for detection of pitting corrosion under iron sulfide deposition | Qiwei Wang, Fakuen Frank Chang | 2021-06-22 |
| 11001749 | Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency | Leiming Li, Feng Liang | 2021-05-11 |
| 10913889 | Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency | Leiming Li, Feng Liang | 2021-02-09 |