Ko-Chien Liu

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Taipei City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Illuminating device
- Patent number 6,523,969
- Issue date Feb 25, 2003
- Chien-Jen Yang
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
ILLUMINATING DEVICE
- Publication number 20030016530
- Publication date Jan 23, 2003
- Chien-Jen Yang
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES