Lak Cheong

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Eyewear with interchangeable attachment
- Patent number 8,523,351
- Issue date Sep 3, 2013
- Lak Cheong
- G02 - OPTICS
Information Patent Grant
Eyeglass frame, an eyeglass hinge, and a method of assembling a hin...
- Patent number 8,414,120
- Issue date Apr 9, 2013
- Lak Cheong
- G02 - OPTICS
Information Patent Grant
Eyeglass frame, eyewear, and an eyewear assembly method
- Patent number 8,182,086
- Issue date May 22, 2012
- Lak Cheong
- G02 - OPTICS
Information Patent Grant
Eyeglass frame with removably mounted lenses
- Patent number 6,592,220
- Issue date Jul 15, 2003
- Lak Cheong
- G02 - OPTICS
Information Patent Grant
Screw for securing optical lens to clasp
- Patent number 5,936,702
- Issue date Aug 10, 1999
- Lak Cheong
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
EYEWEAR WITH INTERCHANGEABLE ATTACHMENT
- Publication number 20130235330
- Publication date Sep 12, 2013
- Lak Cheong
- G02 - OPTICS
Information Patent Application
EYEGLASS FRAME, AN EYEGLASS HINGE, AND A METHOD OF ASSEMBLING A HIN...
- Publication number 20130033675
- Publication date Feb 7, 2013
- Lak Cheong
- G02 - OPTICS
Information Patent Application
EYEGLASS FRAME, EYEWEAR, AND AN EYEWEAR ASSEMBLY METHOD
- Publication number 20120069293
- Publication date Mar 22, 2012
- Lak Cheong
- G02 - OPTICS