Chang; Yen-Li
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Yen-Li.The latest application filed is for "bladder structure of a football".
- Chang; Yen-Li - Taipei TW
- Chang; Yen-Li - Taipei City TW
| Patent | Date |
|---|---|
| Football Grant D551,308 - Chang September 18, 2 | 2007-09-18 |
| Bladder structure of a football App 20070178997 - Chang; Yen-Li | 2007-08-02 |
| Ball structure App 20070161440 - Chang; Yen-Li | 2007-07-12 |
| Ball with an improved bladder carcass securely engaging with multiple cover panels App 20070037642 - Chang; Yen-Li | 2007-02-15 |
| Cover panel structure of a ball surface App 20070010360 - Chang; Yen-Li | 2007-01-11 |
| Football Grant D533,238 - Chang December 5, 2 | 2006-12-05 |
| Method for manufacturing an inflatable ball and a ball made with the method Grant 7,066,853 - Chang June 27, 2 | 2006-06-27 |
| Football Grant D518,536 - Chang April 4, 2 | 2006-04-04 |
| Method for manufacturing an inflatable ball and a ball made with the method App 20060068951 - Chang; Yen-Li | 2006-03-30 |
| Football Grant D504,709 - Chang May 3, 2 | 2005-05-03 |
| Football Grant D503,760 - Chang April 5, 2 | 2005-04-05 |
| Basketball App 20040259670 - Chang, Yen-Li | 2004-12-23 |
| Football Grant D498,802 - Chang November 23, 2 | 2004-11-23 |
| Method for manufacturing a basketball App 20040177916 - Chang, Yen-Li | 2004-09-16 |
| Sports ball Grant D484,934 - Chang January 6, 2 | 2004-01-06 |
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