Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10723929 | Thinner for oil-based drilling fluids | Chun Zhou, Jiancheng Li, Stephanie Yu | 2020-07-28 |
| 10723931 | Thinner for oil-based drilling fluids | Chun Zhou, Fuchen Liu | 2020-07-28 |
| 10072197 | Crosslinked high molecular weight polymers for use in water-based drilling fluids | Meng Lu, Guang Chang Ma, Feng Xiao | 2018-09-11 |
| 6770602 | Oil based well fluids with high solids content | Arvind D. Patel, Reginald Bell, Jim Friedheim | 2004-08-03 |
| 6405809 | Conductive medium for openhold logging and logging while drilling | Arvind D. Patel, Reginald Bell, Steve Young | 2002-06-18 |
| 6308788 | Conductive medium for openhole logging and logging while drilling | Arvind D. Patel, Rejinald J. Bell | 2001-10-30 |