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Patent applications and USPTO patent grants for Hong; Sung Heui.The latest application filed is for "highly transparent optical film".
Patent | Date |
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Polyester film for window Grant 11,135,822 - Kim , et al. October 5, 2 | 2021-10-05 |
Polyester Film For Window App 20210053332 - KIM; Young Ho ;   et al. | 2021-02-25 |
Highly Transparent Optical Film App 20210054156 - KIM; Chang Ju ;   et al. | 2021-02-25 |
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