Yan'an
China
2
2023-11-16
The entities that hold a legal rights for patent applications filed by inventor LI Ping:
Ping LI from Yan'an, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
System for segmented simultaneous water injection and oil recovery through double pipes in horizontal section
#2 | 2023-06-22Fracturing method with synergistic effects of energy enhancement, oil displacement, huff and puff, imbibition, and displacement
5776185 ⎘