Yuen; Yat Keung William
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yuen; Yat Keung William.The latest application filed is for "breast pump".
- Yuen; Yat Keung William - Hong Kong CN
| Patent | Date |
|---|---|
| Breast pump Grant 7,641,629 - Yuen January 5, 2 | 2010-01-05 |
| Breast pump App 20050228342 - Yuen, Yat Keung William | 2005-10-13 |
| Flow restrictor, a cap with such a flow restrictor, and a drinking cup with such a cap App 20040173623 - Yuen, Yat Keung William | 2004-09-09 |
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