Yanjun LI

City:

Beijing

Country:

China

Published Applications:

Last publication date:

2019-03-21

Top Assignees for applications by Yanjun LI

The entities that hold a legal rights for patent applications filed by inventor LI Yanjun:

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

Accelerator used for drilling fluids, water-based drilling fluid and usage thereof

Film former used for coal-bed gas well drilling and preparation method thereof, drilling fluid and usage thereof

Snore stopping device

Wearable device and terminal

InventorID:

1788877 ⎘