Cornerstone Optical Co., Ltd.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cornerstone Optical Co., Ltd..The latest application filed is for "color contrast enhancing sunglass lens".
- Cornerstone Optical Co., Ltd. - Chia Yi County TW
- Cornerstone Optical Co., Ltd. - Liu Chiao TW
Trademarks
| Patent | Date |
|---|---|
| Color contrast enhancing sunglass lens Grant 8,733,929 - Chiou , et al. May 27, 2 | 2014-05-27 |
| Color Contrast Enhancing Sunglass Lens App 20130271725 - Chiou; Michael ; et al. | 2013-10-17 |
| Aliphatic polyesterpolyol-based urethane methacrylate edge coated glass polarized lens Grant 8,083,349 - Ho , et al. December 27, 2 | 2011-12-27 |
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