Patents/Inventors

Qingliang Chen

ShantouCN4 patents

4 Patents

US125274872026
Heart Rate Detection Earphone and Earphone Device
Shenzhen Cantianshu Information Technology Co., Ltd.
0 cites
USD10786832025
Headphones
Shenzhen Cantianshu Information Technology Co., Ltd.
0 cites
USD10603142025
Earphones with Charging Case
Shenzhen Cantianshu Information Technology Co., Ltd.
0 cites
US119143392024
Datum Selection Methods and Systems for Minimizing Hole Position Errors in Group Hole Machining of Large Components
CHENGDU AIRCRAFT INDUSTRIAL (GROUP) CO., Ltd.
0 cites