Siu; Johnny
Patent Applications and Registrations
Patent applications and USPTO patent grants for Siu; Johnny.The latest application filed is for "led switch circuitry for varying input voltage source".
- Siu; Johnny - Hong Kong CN
| Patent | Date |
|---|---|
| LED Switch Circuitry for Varying Input Voltage Source Grant 9,320,099 - Leung , et al. April 19, 2 | 2016-04-19 |
| LED switch circuitry for varying input voltage source Grant 9,113,525 - Leung , et al. August 18, 2 | 2015-08-18 |
| Led Switch Circuitry For Varying Input Voltage Source App 20150156831 - Leung; Wa-Hing ; et al. | 2015-06-04 |
| LED switch circuitry for varying input voltage source Grant 8,947,014 - Leung , et al. February 3, 2 | 2015-02-03 |
| LED Switch Circuitry for Varying Input Voltage Source App 20140339984 - Leung; Wa Hing ; et al. | 2014-11-20 |
| LED switch circuitry for varying input voltage source Grant 8,508,140 - Leung , et al. August 13, 2 | 2013-08-13 |
| Stabilizing Network For Electronic Transformer Driven Led Devices App 20120056608 - SIU; Johnny ; et al. | 2012-03-08 |
| Led Switch Circuitry For Varying Input Voltage Source App 20120038285 - Leung; Wa Hing ; et al. | 2012-02-16 |
| Led Switch Circuitry For Varying Input Voltage Source App 20120038615 - LEUNG; Wa-Hing ; et al. | 2012-02-16 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 