Chang; Sheng-Fan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Sheng-Fan.The latest application filed is for "keycap forming method".
- Chang; Sheng-Fan - Taipei TW
| Patent | Date |
|---|---|
| Key structure Grant 11,342,133 - Chang , et al. May 24, 2 | 2022-05-24 |
| Keyboard device and key structure thereof Grant 11,145,474 - Pan , et al. October 12, 2 | 2021-10-12 |
| Keycap forming method Grant 10,832,877 - Li , et al. November 10, 2 | 2020-11-10 |
| Key structure Grant 10,777,371 - Tsai , et al. Sept | 2020-09-15 |
| Keyboard device Grant 10,699,858 - Chang , et al. | 2020-06-30 |
| Keycap Forming Method App 20190371545 - Li; Che-An ; et al. | 2019-12-05 |
| Keyboard Device App 20190221385 - Chang; Sheng-Fan ; et al. | 2019-07-18 |
| Keyboard App 20190013161 - Chang; Sheng-Fan | 2019-01-10 |
| Luminous Keyboard App 20180342361 - CHEN; TSU-YI ; et al. | 2018-11-29 |
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