Chang; Tsung-Jen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Tsung-Jen.The latest application filed is for "multi-linkage press".
- Chang; Tsung-Jen - Kaohsiung TW
- Chang; Tsung-Jen - Taipei TW
- Chang, Tsung-Jen - Taipei City TW
| Patent | Date |
|---|---|
| Multi-linkage Press App 20130008325 - LIN; Yu-Ting ; et al. | 2013-01-10 |
| Power converters and related charging systems Grant 6,661,199 - Chang December 9, 2 | 2003-12-09 |
| Power converters and related charging systems App 20030042867 - Chang, Tsung-Jen | 2003-03-06 |
| Charging systems for simultaneously charging notebook computers and portable devices Grant 6,504,343 - Chang January 7, 2 | 2003-01-07 |
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