Leung; Kwong-Keung
Patent Applications and Registrations
Patent applications and USPTO patent grants for Leung; Kwong-Keung.The latest application filed is for "device and method for utilizing water flow kinetic energy continuously".
- Leung; Kwong-Keung - Hong Kong CN
- Leung; Kwong Keung - Tuen Mun HK
- Leung, Kwong Keung - Lam Tei HK
| Patent | Date |
|---|---|
| Device And Method For Utilizing Water Flow Kinetic Energy Continuously App 20100207394 - Leung; Kwong-Keung | 2010-08-19 |
| Wireless purchase and on-line inventory apparatus and method for vending machines Grant 7,110,954 - Yung , et al. September 19, 2 | 2006-09-19 |
| Wireless purchase and on-line inventory apparatus and method for vending machines App 20020128932 - Yung, Hon Ching ; et al. | 2002-09-12 |
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