Chang; Ching-Ching
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Ching-Ching.The latest application filed is for "oil pipe connector".
- Chang; Ching-Ching - Taipei TW
- Chang; Ching-Ching - Taipei City TW
| Patent | Date |
|---|---|
| Leak-proof structure of oil pipe connector Grant 8,113,485 - Chang , et al. February 14, 2 | 2012-02-14 |
| Oil pipe connector Grant 8,082,942 - Chang , et al. December 27, 2 | 2011-12-27 |
| Oil pipe connector App 20100176586 - Chang; Ching-Ching ; et al. | 2010-07-15 |
| Method and system for managing product output Grant 7,542,819 - Liao , et al. June 2, 2 | 2009-06-02 |
| Method and system for controlling production and exportation App 20030144851 - Liao, Yi-Ming ; et al. | 2003-07-31 |
| Method and system for managing product output App 20030078822 - Liao, Yi-Ming ; et al. | 2003-04-24 |
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