Inventor

QIN YUFENG

CN4 patents

⚠️ This page may combine multiple inventors who share the name “QIN YUFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DONG E E JIAO CO LTD

2 patents

USD984886SMay 2, 2023

Packing box

DONG E E JIAO CO LTD6 citations75

US11547671B2Jan 10, 2023

Gel product instant-dissolving block and preparation method thereof

DONG E E JIAO CO LTD0 citations41

SHANDONG DONG E E JIAO CO LTD

1 patent

US9125851B2Sep 8, 2015

Active small-molecule donkey-hide gelatin mixture and preparation method and application thereof

SHANDONG DONG E E JIAO CO LTD0 citations33

GUANGXI YUCHAI MACHINERY CO LTD

1 patent

US11060467B2Jul 13, 2021

Electrically controlled pneumatic surge prevention device and control method

GUANGXI YUCHAI MACHINERY CO LTD0 citations31