Xiaochen Qian

City:

Chongqing

Country:

China

Published Applications:

Last publication date:

2025-07-03

Top Assignees for applications by Xiaochen Qian

The entities that hold a legal rights for patent applications filed by inventor Qian Xiaochen:

Xiaochen Qian from Chongqing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

ALL-METAL DISSOLVABLE BALL SEAT FOR SELF-COMPENSATING FRACTURING

All-metal dissolvable ball seat for self-compensating fracturing

InventorID:

7119362 ⎘