Inventor

LI YOUQING

CN3 patents

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

LI YOUQING

2 patents

US8947870B2Feb 3, 2015

Sliding and rotating apparatus and device having same

LI YOUQING1 citations42

US9636636B2May 2, 2017

Combination unit and combination method of multiple membrane shells

LI YOUQING0 citations28

SHENZHEN SHIDAR TRADING CO LTD

1 patent

USD1098251SOct 14, 2025

Digital piano and triple pedal set

SHENZHEN SHIDAR TRADING CO LTD0 citations44