Changwei LI

City:

Chengdu

Country:

China

Published Applications:

Last publication date:

2022-07-21

Top Assignees for applications by Changwei LI

The entities that hold a legal rights for patent applications filed by inventor LI Changwei:

Changwei LI from Chengdu, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

Square pile construction method and equipment of a rotary drilling rig

InventorID:

5468846 ⎘