Donghui Yang

City:

Beijing

Country:

China

Published Applications:

Last publication date:

2025-09-16

Top Assignees for applications by Donghui Yang

The entities that hold a legal rights for patent applications filed by inventor Yang Donghui:

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

Methods for grout injection repair and water retention in goaf

COAL MINING SYSTEM AND METHOD OF DUAL CIRCULATION DRILLING WITH MECHANICAL REAMING AND ABRASIVE JET

Coal and coalbed methane mining system based on ground drilling, method and related device

Integrated mining method of coal breaking, coal extraction and water circulation in U-well and system thereof

Anti-virus and firewall system

InventorID:

4524995 ⎘