Hsu; Chih-Chan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hsu; Chih-Chan.The latest application filed is for "ball chair".
- Hsu; Chih-Chan - Chang-Hwa-Hsien TW
- HSU; Chih-Chan - HOMEI TOWN TW
| Patent | Date |
|---|---|
| Base seat of a ball chair Grant D834,840 - Hsu De | 2018-12-04 |
| Ball chair Grant 9,713,383 - Hsu July 25, 2 | 2017-07-25 |
| Ball chair Grant D783,301 - Hsu April 11, 2 | 2017-04-11 |
| Ball Chair App 20160353894 - HSU; Chih-Chan | 2016-12-08 |
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