Qingfeng Wang

City:

Chongqing

Country:

China

Published Applications:

Last publication date:

2025-10-02

Top Assignees for applications by Qingfeng Wang

The entities that hold a legal rights for patent applications filed by inventor Wang Qingfeng:

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

COAL MINE INTELLIGENT DIRECTIONAL DRILL AND DRILLING METHOD THEREFOR

COAL MINE AUTOMATIC DIRECTIONAL DRILL

InventorID:

7587705 ⎘