Chang; Tzu-Wei
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Tzu-Wei.The latest application filed is for "pick-resistant lock system".
- Chang; Tzu-Wei - Taipei County TW
- Chang; Tzu-Wei - Tu-Cheng City TW
- Chang; Tzu-Wei - Tu-Cheng TW
| Patent | Date |
|---|---|
| Pick-resistant lock system Grant 8,094,018 - Chang January 10, 2 | 2012-01-10 |
| Pick-resistant Lock System App 20090223265 - Chang; Tzu-Wei | 2009-09-10 |
| Terminal App 20080096443 - Kuan; Chieh-Min ; et al. | 2008-04-24 |
| USB connector Grant D563,875 - Chang , et al. March 11, 2 | 2008-03-11 |
| USB connector Grant D551,627 - Chang , et al. September 25, 2 | 2007-09-25 |
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