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Inventor profile of:

Hongfeng LI

City:

Harbin

Country:

China

Published Applications:

2

Last publication date:

2021-08-26

Recent patent applications by LI Hongfeng

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

#1 | 2021-08-26

US20210261735A1

Chemistry; metallurgy

Heat resistant polyimide film

#2 | 2020-06-04

US20200172676A1

Chemistry; metallurgy

Heat resistant polyimide film and preparation method thereof

InventorID:

2749941 ⎘