Chang; Keng Yeam
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Keng Yeam.The latest application filed is for "driving circuit with fault detection and optical input device having the same".
- Chang; Keng Yeam - Penang MY
- Chang; Keng Yeam - Pulau Pinang N/A MY
- Chang; Keng Yeam - Denver CO
| Patent | Date |
|---|---|
| Amplifying circuit and optical navigation device Grant 11,405,006 - Yem , et al. August 2, 2 | 2022-08-02 |
| Navigation device and power saving method thereof Grant 9,383,833 - Lye , et al. July 5, 2 | 2016-07-05 |
| Driving circuit with fault detection and optical input device having the same Grant 9,292,113 - Teh , et al. March 22, 2 | 2016-03-22 |
| Driving Circuit With Fault Detection And Optical Input Device Having The Same App 20150338931 - TEH; LEE LING ; et al. | 2015-11-26 |
| Optical navigation sensor with integrated charge pump Grant 9,198,266 - Yem , et al. November 24, 2 | 2015-11-24 |
| Optical Navigation Sensor With Integrated Charge Pump App 20150305127 - YEM; Poh Weng ; et al. | 2015-10-22 |
| Navigation Device And Power Saving Method Thereof App 20140300548 - LYE; Keng-Yeen ; et al. | 2014-10-09 |
| Combination LED driver Grant 8,471,493 - Yem , et al. June 25, 2 | 2013-06-25 |
| Combination Led Driver App 20120268032 - Yem; Poh Weng ; et al. | 2012-10-25 |
| Wireless Input Device With A Power Saving System App 20120198258 - Lye; Keng Yeen ; et al. | 2012-08-02 |
| Optical navigation device, and method for manufacturing same Grant 7,247,835 - Chang July 24, 2 | 2007-07-24 |
| Optical Navigation Device, And Method For Manufacturing Same App 20070138378 - Chang; Keng Yeam | 2007-06-21 |
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