Shum; Wai Yin
Patent Applications and Registrations
Patent applications and USPTO patent grants for Shum; Wai Yin.The latest application filed is for "adjustable door sensor".
- Shum; Wai Yin - Hong Kong CN
- Shum; Wai Yin - Caribbean Coast HK
- Shum; Wai Yin - Tung Chung HK
| Patent | Date |
|---|---|
| Buried wireless unit for measuring and reporting environmental parameters Grant 11,411,297 - Cheung , et al. August 9, 2 | 2022-08-09 |
| Robust and high current smart-plug Grant 10,291,065 - Chan , et al. | 2019-05-14 |
| Adjustable door sensor Grant 9,959,719 - Pai , et al. May 1, 2 | 2018-05-01 |
| Adjustable Door Sensor App 20170365142 - Pai; Samuel Hong-Yen ; et al. | 2017-12-21 |
| Robust and High Current Smart-Plug App 20170288456 - Chan; Dick Kwai ; et al. | 2017-10-05 |
| Adjustable building entry sensor Grant 9,761,098 - Pai , et al. September 12, 2 | 2017-09-12 |
| Adjustable Building Entry Sensor App 20160196729 - Pai; Samuel Hong-Yen ; et al. | 2016-07-07 |
| Clip for mounting a fluid delivery device Grant 8,291,524 - Leonard , et al. October 23, 2 | 2012-10-23 |
| Toilet Bowl Cleaning And/Or Deodorizing Device App 20090000016 - Sawalski; Michael M. ; et al. | 2009-01-01 |
| Clip for Mounting a Fluid Delivery Device App 20080017762 - Leonard; Stephen B. ; et al. | 2008-01-24 |
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