Chen; Shih-Ruey
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chen; Shih-Ruey.The latest application filed is for "diluted cationic friction reducers".
- Chen; Shih-Ruey - Studio City CA
- CHEN; Shih-Ruey - Pittsburgh PA
| Patent | Date |
|---|---|
| Salt tolerant friction reducer Grant 11,261,361 - Frederick , et al. March 1, 2 | 2022-03-01 |
| Diluted Cationic Friction Reducers App 20220017808 - Sawant; Kailas ; et al. | 2022-01-20 |
| Diluted cationic friction reducers Grant 11,162,011 - Sawant , et al. November 2, 2 | 2021-11-02 |
| Viscosifying Friction Reducers App 20200399529 - LIN; Genyao ; et al. | 2020-12-24 |
| Salt tolerant friction reducer Grant 10,711,173 - Frederick , et al. | 2020-07-14 |
| Salt Tolerant Friction Reducer App 20200024497 - FREDERICK; Kevin ; et al. | 2020-01-23 |
| Diluted Cationic Friction Reducers App 20180244974 - SAWANT; Kailas ; et al. | 2018-08-30 |
| Salt Tolerant Friction Reducer App 20180100094 - Frederick; Kevin ; et al. | 2018-04-12 |
| Salt Tolerant Friction Reducer App 20180072935 - FREDERICK; Kevin ; et al. | 2018-03-15 |
| Viscosifying Friction Reducers App 20160251567 - LIN; Genyao ; et al. | 2016-09-01 |
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