Changyan Duan

City:

Beijing

Country:

China

Published Applications:

Last publication date:

2006-06-01

Top Assignees for applications by Changyan Duan

The entities that hold a legal rights for patent applications filed by inventor Duan Changyan:

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

Method for the preparation of high-content NaY molecular sieves synthesized from kaolin sprayed microspheres

InventorID:

4635242 ⎘