Alan Kin Lun Choi

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Kowloon, HK

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Patents Grantslast 30 patents

Information Patent Grant
Variable space shutter for LED display
- Patent number 8,120,833
- Issue date Feb 21, 2012
- Lighthouse Technologies Limited
- Kui Lai Curie Chan
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
VARIABLE SPACE SHUTTER FOR LED DISPLAY
- Publication number 20120008186
- Publication date Jan 12, 2012
- Kui Lai Curie CHAN
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS