Hangtai KAI

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Alpharetta, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing polarized ophthalmic lenses
- Patent number 7,942,523
- Issue date May 17, 2011
- Qspex Technologies, Inc.
- Kai C. Su
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING POLARIZED OPHTHALMIC LENSES
- Publication number 20090079934
- Publication date Mar 26, 2009
- QSPEX TECHNOLOGIES, INC.
- Kai C. SU
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL