Guoqiang LIAO

Follow

Person

Hong Kong, HK

People

Patents Grantslast 30 patents

Information Patent Grant
Earplug-type earphone
- Patent number 9,924,259
- Issue date Mar 20, 2018
- Well Being Digital Limited
- Guoqiang Liao
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Earplug-type earphone
- Patent number 9,392,351
- Issue date Jul 12, 2016
- Well Being Digital Limited
- Guoqiang Liao
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Earplug-Type Earphone
- Publication number 20160269815
- Publication date Sep 15, 2016
- WELL BEING DIGITAL LIMITED
- Guoqiang LIAO
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE