Cheng; Rong-Feng
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheng; Rong-Feng.The latest application filed is for "electronic device and method for offering services according to user facial expressions".
- Cheng; Rong-Feng - Shenzhen N/A CN
- CHENG; RONG-FENG - Shenzhen City CN
| Patent | Date |
|---|---|
| Electronic device and method for offering services according to user facial expressions Grant 8,847,884 - Li , et al. September 30, 2 | 2014-09-30 |
| Electronic device and method for unlocking locked operating system Grant 8,756,679 - Cheng , et al. June 17, 2 | 2014-06-17 |
| Electronic Device And Method For Offering Services According To User Facial Expressions App 20130162524 - LI; HAI-SHENG ; et al. | 2013-06-27 |
| Electronic Device And Method For Unlocking Locked Operating System App 20130145458 - CHENG; RONG-FENG ; et al. | 2013-06-06 |
| Electronic Device Used In Synchronous Control System And Synchronous Control Method App 20120313797 - LI; HAI-SHENG ; et al. | 2012-12-13 |
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