Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12399165 | On-line core holder design for polymer quality testing device | Ming Han, Abdulaziz AlKhateeb, Abdulkareem AlSofi | 2025-08-26 |
| 12379299 | Methods and systems for a parallel flow core sample holder | Abdulkareem M. Al-Sofi, Ming Han | 2025-08-05 |
| 12221883 | Compact apparatus for quick core flood tests and method of use | Ming Han | 2025-02-11 |
| 11993553 | Preparation of cationic surfactants | Xuan Zhang, Ming Han | 2024-05-28 |
| 11906417 | Restoring core samples | Ying-Chih Wang, Ming Han, Dongqing Cao | 2024-02-20 |
| 11828693 | Centrifuge method for evaluating contact angle and wettability alteration | Jun Gao, Abdulkareem AlSofi | 2023-11-28 |
| 11820842 | Sulfonated polymer | Xuan Zhang, Ming Han, Jian Hou | 2023-11-21 |
| 11795374 | Composition and method of making cationic surfactants with two quaternary ammonium head groups | Xuan Zhang, Ming Han, Dongqing Cao | 2023-10-24 |
| 11774436 | Method for determining foam stability in a core plug | Abdulkareem M. Al-Sofi | 2023-10-03 |
| 11661829 | Sequential injection of solvent, hot water, and polymer for improving heavy oil recovery | Abdulkareem AlSofi, Saleh F. Hassan | 2023-05-30 |
| 11614391 | Evaluating gel stability by injection in alternating flow directions | Abdulkareem M. Al-Sofi | 2023-03-28 |
| 11591292 | Preparation of cationic surfactants | Xuan Zhang, Ming Han | 2023-02-28 |
| 11591291 | Preparation of cationic surfactants | Xuan Zhang, Ming Han | 2023-02-28 |
| 11286232 | Preparation of cationic surfactants | Xuan Zhang, Ming Han | 2022-03-29 |
| 11215729 | Determining permeability variation | Hassan W. Al Hashim, Abdulkareem AlSofi, Amar Jaber M. Alshehri | 2022-01-04 |
| 11041109 | Enhanced surfactant polymer flooding processes for oil recovery in carbonate reservoirs | Subhash Chandrabose Ayirala, Abdulkareem M. Al-Sofi, Ali Abdallah Al-Yousef | 2021-06-22 |
| 10988673 | Polymer flooding processes for viscous oil recovery in carbonate reservoirs | Subhash Chandrabose Ayirala, Abdulkareem M. Al-Sofi, Ali Abdallah Al-Yousef | 2021-04-27 |
| 10961831 | Polymer flooding processes for viscous oil recovery in carbonate reservoirs | Subhash Chandrabose Ayirala, Abdulkareem M. Al-Sofi, Ali Abdallah Al-Yousef | 2021-03-30 |
| 10927290 | Chemical imbibition by gels containing surfactants for fractured carbonate reservoirs | Ming Han, Dongqing Cao, Abdullah Al-Boqmi, Amar Jaber M. Alshehri | 2021-02-23 |
| 10788410 | Gelation characterization in slim tubes | Abdulkareem AlSofi, Amar Jaber M. Alshehri | 2020-09-29 |
| 10725198 | Determining permeability variation | Hassan W. Al Hashim, Abdulkareem AlSofi, Amar Jaber M. Alshehri | 2020-07-28 |
| 10689978 | Method for determining gelation time in a core plug | Abdulkareem M. Al-Sofi, Hassan W. Al Hashim | 2020-06-23 |
| 10472553 | Delayed polymer gelation using low total dissolved solids brine | Amar Jaber M. Alshehri | 2019-11-12 |
| 10457851 | Polymer flooding processes for viscous oil recovery in carbonate reservoirs | Subhash Chandrabose Ayirala, Abdulkareem M. Al-Sofi, Ali Abdallah Al-Yousef | 2019-10-29 |