Ronghua Liu

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Pleasanton, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Silicone hydrogel contact lenses having acceptable levels of energy...
- Patent number 8,658,748
- Issue date Feb 25, 2014
- CooperVision International Holding Company, LP
- Ronghua Liu
- G02 - OPTICS
Information Patent Grant
Silicone hydrogel contact lenses having acceptable levels of energy...
- Patent number 8,481,662
- Issue date Jul 9, 2013
- CooperVision International Holding Company, LP
- Ronghua Liu
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Silicone Hydrogel Contact Lenses Having Acceptable Levels Of Energy...
- Publication number 20130261216
- Publication date Oct 3, 2013
- COOPERVISION INTERNATIONAL HOLDING COMPANY, L.P.
- Ronghua Liu
- G02 - OPTICS
Information Patent Application
Silicone Hydrogel Contact Lenses With High Freezable Water Content
- Publication number 20120216489
- Publication date Aug 30, 2012
- COOPERVISION INTERNATIONAL HOLDING COMPANY, L.P.
- Paul Hungchaung Lee
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Silicone Hydrogel Contact Lenses Having Acceptable Levels Of Energy...
- Publication number 20120220690
- Publication date Aug 30, 2012
- COOPERVISION INTERNATIONAL HOLDING COMPANY, L.P.
- Ronghua Liu
- G02 - OPTICS