Liu; Cheng-En
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Cheng-En.The latest application filed is for "power source equipment with powering over ethernet".
- Liu; Cheng-En - Taoyuan TW
- LIU; Cheng-En - Taoyuan City TW
- Liu; Cheng-En - Taipei TW
- LIU; Cheng-En - Taipei City TW
- Liu; Cheng-En - Taichung TW
- LIU; CHENG-EN - TAICHUNG CITY TW
| Patent | Date |
|---|---|
| Power source equipment with powering over ethernet Grant 11,212,122 - Peng , et al. December 28, 2 | 2021-12-28 |
| Power Source Equipment With Powering Over Ethernet App 20210126804 - PENG; Yung-Wei ; et al. | 2021-04-29 |
| Optical measuring apparatus and operating method thereof Grant 10,325,368 - Hsu , et al. | 2019-06-18 |
| Optical Measuring Apparatus And Operating Method Thereof App 20170315048 - HSU; Long ; et al. | 2017-11-02 |
| Frequency tracing circuit and method thereof Grant 8,824,615 - Lin , et al. September 2, 2 | 2014-09-02 |
| Frequency Tracing Circuit And Method Thereof App 20140152356 - LIN; TSUNG-HSIEN ; et al. | 2014-06-05 |
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