loadpatents
Patent applications and USPTO patent grants for Masuda; Yasutake.The latest application filed is for "spectacle lens".
Patent | Date |
---|---|
Spectacle lens Grant 11,397,335 - To , et al. July 26, 2 | 2022-07-26 |
Spectacle lens and method of using a spectacle lens Grant 11,029,540 - To , et al. June 8, 2 | 2021-06-08 |
Spectacle Lens App 20200159044 - TO; Chi Ho ;   et al. | 2020-05-21 |
Spectacle Lens App 20190212580 - TO; Chi Ho ;   et al. | 2019-07-11 |
Spectacle lens Grant 10,268,050 - To , et al. | 2019-04-23 |
Spectacle Lens App 20170131567 - TO; Chi Ho ;   et al. | 2017-05-11 |
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