Wei Liu

City:

Panjin

Country:

China

Published Applications:

Last publication date:

2024-02-29

Top Assignees for applications by Wei Liu

The entities that hold a legal rights for patent applications filed by inventor Liu Wei:

Wei Liu from Panjin, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

FRACTURING PROPPING AGENT AND PREPARATION METHOD OF FRACTURING PROPPING AGENT BY USING OIL SLUDGE PRODUCED IN EXPLOITED OF OIL AND GAS FIELD

InventorID:

7072701 ⎘