King Biu Mak

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Yau Tong, Kowloon, HK

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Patents Grantslast 30 patents

Information Patent Grant
Letter opener
- Patent number 6,898,856
- Issue date May 31, 2005
- King Biu Mak
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Apparatus for sharpening a writing instrument
- Patent number 6,637,481
- Issue date Oct 28, 2003
- King Biu Mak
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Mechanism for sharpening a writing instrument
- Patent number 6,397,480
- Issue date Jun 4, 2002
- Mosel Vitelic Inc
- King Biu Mak
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Clip dispenser
- Patent number D457190
- Issue date May 14, 2002
- King Biu Mak
- D19 - Office supplies
Information Patent Grant
Clip dispenser
- Patent number D452531
- Issue date Dec 25, 2001
- King Biu Mak
- D19 - Office supplies

Patents Applicationslast 30 patents

Information Patent Application
LETTER OPENER
- Publication number 20050081390
- Publication date Apr 21, 2005
- King Biu Mak
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
APPARATUS FOR SHARPENING A WRITING INSTRUMENT
- Publication number 20030172992
- Publication date Sep 18, 2003
- King Biu Mak
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES