Changjun Yu

City:

Beijing

Country:

China

Published Applications:

Last publication date:

2022-07-28

Top Assignees for applications by Changjun Yu

The entities that hold a legal rights for patent applications filed by inventor Yu Changjun:

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

METHOD FOR PREPARING AMMONIA BY USING AMMONIUM SALT AND SILICATE

System and method for preparing ultrafine silica by leaching silicate ore using hydrogen chloride gas

PREPARATION DEVICE AND PREPARATION METHOD OF AMMONIA GAS

METHOD AND SYSTEM FOR PREPARING HYDROGEN CHLORIDE AND AMMONIA GAS BY USING AMMONIUM CHLORIDE

Apparatus and method for absorbing and mineralizing carbon dioxide

InventorID:

1914798 ⎘