Li; Yiu Cheung
Patent Applications and Registrations
Patent applications and USPTO patent grants for Li; Yiu Cheung.The latest application filed is for "battery chargers".
- Li; Yiu Cheung - Hong Kong CN
- Li; Yiu Cheung - Hong Kong SAR CN
- Li; Yiu Cheung - New Territories HK
- Li, Yiu Cheung - Sham Tseng HK
| Patent | Date |
|---|---|
| Intelligent serial battery charger and charging block Grant RE41,676 - Yau , et al. September 14, 2 | 2010-09-14 |
| Intelligent serial battery charger Grant 7,557,538 - Yau , et al. July 7, 2 | 2009-07-07 |
| Battery chargers App 20060022635 - Li; Yiu Cheung ; et al. | 2006-02-02 |
| Intelligent serial battery charger App 20050083016 - Yau, Kwok Wong ; et al. | 2005-04-21 |
| Intelligent serial battery charger and charging block Grant 6,822,423 - Yau , et al. November 23, 2 | 2004-11-23 |
| Intelligent serial battery charger and charging block App 20030160593 - Yau, Kwok Wong ; et al. | 2003-08-28 |
| Intelligent serial battery charger and charging block App 20030042870 - Yau, Kwok Wong ; et al. | 2003-03-06 |
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