Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11225604 | Acrylate-based sulfur scavenging agents for use in oilfield operations | Liu Shi, Liangwei Qu, Michael L. Harless, Ron Hoppe | 2022-01-18 |
| 11078403 | Synergistic sulfide scavenging additives for use in oilfield operations | Liu Shi, Liangwei Qu, Edward Corrin | 2021-08-03 |
| 10668510 | Compositions, systems, and methods for removing iron sulfide scale from oilfield components | Yang Peng, Zhiwei Yue, Liu Shi, Liangwei Qu, Chunfang Fan | 2020-06-02 |
| 10597582 | Acrylate-based sulfur scavenging agents for use in oilfield operations | Liu Shi, Liangwei Qu, Michael L. Harless, Ron Hoppe | 2020-03-24 |
| 10590333 | Cationic multiple quaternary ammonium-based surfactants for enhancing production in subterranean formations | Kai He, Liangwei Qu, Liang Xu | 2020-03-17 |
| 10584275 | Compositions, systems, and methods for removing iron sulfide scale from oilfield components using methyl acrylate | Yang Peng, Zhiwei Yue, Liu Shi, Ronald L. Hoppe, Liangwei Qu +1 more | 2020-03-10 |
| 10550309 | Synergistic sulfide scavenging additives for use in oilfield operations | Liu Shi, Liangwei Qu, Edward Corrin | 2020-02-04 |
| 10364385 | Multi-tail hydrate inhibitors | Yanqiu Sun, Liangwei Qu, Erick J. Acosta | 2019-07-30 |
| 10246628 | Multiple hydrophilic head corrosion inhibitors | Liangwei Qu, Nathan Darrell Davis, Qiang Fu | 2019-04-02 |
| 10106721 | Cationic surfactants for scale inhibitor squeeze applications | Zhiwei Yue, Yang Peng, Liangwei Qu, Chunfang Fan | 2018-10-23 |
| 10059871 | Multi-tail hydrate inhibitors | Yanqui Sun, Liangwei Qu, Erick J. Acosta | 2018-08-28 |
| 9919348 | Compositions, systems, and methods for removing iron sulfide scale from oilfield components | Yang Peng, Zhiwei Yue, Liu Shi, Liangwei Qu, Chunfang Fan | 2018-03-20 |
| 9902893 | Multiple hydrophilic head hydrate inhibitors | Liangwei Qu, Yangqiu Sun, Curtis Conkle, Erick J. Acosta | 2018-02-27 |
| 9896616 | Acrylonitrile-based sulfur scavenging agents and methods of use in oilfield operations | Liu Shi, Liangwei Qu, Michael L. Harless, Ron Hoppe | 2018-02-20 |
| 9796906 | Multiple hydrophilic head hydrate inhibitors | Liangwei Qu, Yangqiu Sun, Curtis Conkle, Erick J. Acosta | 2017-10-24 |
| 9676991 | Multi-tail hydrate inhibitors | Yanqiu Sun, Liangwei Qu, Erick J. Acosta | 2017-06-13 |
| 9637679 | Multiple hydrophilic head corrosion inhibitors | Liangwei Qu, Nathan Darrell Davis, Qiang Fu | 2017-05-02 |