Yee-Shang LAI

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Hualien City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Two side writing fountain pen
- Patent number 8,684,618
- Issue date Apr 1, 2014
- Yee-Shang Lai
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Omnibearing Writable Fountain Pen
- Publication number 20190061411
- Publication date Feb 28, 2019
- Yee-Shang LAI
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
TWO SIDE WRITING FOUNTAIN PEN
- Publication number 20130322953
- Publication date Dec 5, 2013
- Yee-Shang LAI
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES