Ching-Huang Lee

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San-Chung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Pen having a 3-dimensional pattern thereon
- Patent number 6,471,433
- Issue date Oct 29, 2002
- Ding Area Enterprice Co., Ltd.
- Ching-Huang Lee
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Pen having a 3-dimensional pattern thereon
- Patent number 6,019,536
- Issue date Feb 1, 2000
- Ding Ares Enterprise Co., Ltd.
- Ching-Huang Lee
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Light pen
- Patent number 5,961,199
- Issue date Oct 5, 1999
- Ding Ares Enterprise Co., Ltd.
- Ching-Huang Lee
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES