Chan; Cho Sing
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chan; Cho Sing.The latest application filed is for "passive anti-arcing protection device for fluorescent lamp ballast".
- Chan; Cho Sing - Hong Kong CN
- Chan; Cho Sing - Kowloon HK
| Patent | Date |
|---|---|
| Passive anti-arcing protection device for fluorescent lamp ballast Grant 8,760,065 - Chan , et al. June 24, 2 | 2014-06-24 |
| Current leakage protection device for LED applications Grant 8,400,076 - Chan , et al. March 19, 2 | 2013-03-19 |
| Passive Anti-Arcing Protection Device for Fluorescent Lamp Ballast App 20120161657 - CHAN; Cho Sing ; et al. | 2012-06-28 |
| Current Leakage Protection Device for LED Applications App 20120086356 - Chan; Cho Sing ; et al. | 2012-04-12 |
| Electronic ballast with preheating and dimming control Grant 7,728,528 - Chan , et al. June 1, 2 | 2010-06-01 |
| Electronic Ballast With Preheating and Dimming Control App 20080042588 - Chan; Cho Sing ; et al. | 2008-02-21 |
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