TSAI; Chang-Keng
Patent Applications and Registrations
Patent applications and USPTO patent grants for TSAI; Chang-Keng.The latest application filed is for "depress-to-actuate pneumatically-operated double-walled container".
- TSAI; Chang-Keng - Taipei TW
- Tsai; Chang-Keng - Taipei City TW
| Patent | Date |
|---|---|
| Depress-to-actuate Pneumatically-operated Double-walled Container App 20080105706 - TSAI; Chang-Keng | 2008-05-08 |
| Pump device for fluid dispenser App 20070164055 - Tsai; Chang-Keng | 2007-07-19 |
| Double-layered fluid container Grant 7,150,376 - Tsai December 19, 2 | 2006-12-19 |
| Pressurized container for fluid App 20060131341 - Tsai; Chang-Keng | 2006-06-22 |
| Double-layered fluid container App 20050098568 - Tsai, Chang-Keng | 2005-05-12 |
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