🔗 Permalink

Inventor profile of:

QINGFENG TAN

City:

Beijing City

Country:

China

Published Applications:

1

Last publication date:

2021-06-24

Recent patent applications by TAN QINGFENG

QINGFENG TAN from Beijing City, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2021-06-24

US20210189267A1

Chemistry; metallurgy

METHOD AND DEVICE FOR VISCOSITY-REDUCING AND UPGRADING OF LOW-GRADE HEAVY OIL

InventorID:

5115697 ⎘