Ronald Sik Hung Yuen

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Flexible LED screen
- Patent number 9,936,561
- Issue date Apr 3, 2018
- Ronald Sik Hung Yuen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Flexible LED screen
- Patent number 9,237,652
- Issue date Jan 12, 2016
- Ronald Sik Hung Yuen
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Flexible LED Screen
- Publication number 20160095183
- Publication date Mar 31, 2016
- Ronald Sik Hung Yuen
- H01 - BASIC ELECTRIC ELEMENTS