Inventor

LI SHANGJING

CN3 patents

Patents

3 patents

US12309540B1May 20, 2025

Microphone

GUANGDONG DINGCHUANG SMART MFG CO LTD0 citations56

US12477259B2Nov 18, 2025

Microphone

GUANGDONG DINGCHUANG SMART MFG CO LTD0 citations46

US12468503B1Nov 11, 2025

Sound card

GUANGDONG DINGCHUANG SMART MFG CO LTD0 citations46