Cheung; William K. Y.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheung; William K. Y..The latest application filed is for "tilt sensor for cleaning device".
- Cheung; William K. Y. - Yuen Long HK
- Cheung; William K.Y. - Pat Heung HK
| Patent | Date |
|---|---|
| Tilt sensor for cleaning device Grant 8,161,596 - Cheung , et al. April 24, 2 | 2012-04-24 |
| Tilt Sensor For Cleaning Device App 20100186187 - Cheung; William K.Y. ; et al. | 2010-07-29 |
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