Qingping Chai

City:

Beijing

Country:

China

Published Applications:

Last publication date:

2025-09-09

Top Assignees for applications by Qingping Chai

The entities that hold a legal rights for patent applications filed by inventor Chai Qingping:

Qingping Chai from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

Full-face shaft boring machine, boring system, and boring method

InventorID:

7564651 ⎘