Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8998433 | Light emitting device utilizing remote wavelength conversion with improved color characteristics | Yi-Qun Li, James Caruso, Charles Edwards | 2015-04-07 |
| 8947619 | Photoluminescence color display comprising quantum dots material and a wavelength selective filter that allows passage of excitation radiation and prevents passage of light generated by photoluminescence materials | Yi-Qun Li, Wei Shan | 2015-02-03 |
| 8883528 | Methods of producing light emitting device with phosphor wavelength conversion | Yi-Qun Li | 2014-11-11 |
| 8773337 | Color temperature tunable white light source | Yi-Qun Li, Xiaofeng Xu | 2014-07-08 |
| 8631598 | Light emitting sign and display surface therefor | Yi-Qun Li, James Caruso, Charles Edwards | 2014-01-21 |
| 8539702 | Light emitting sign and display surface therefor | Yi-Qun Li, James Caruso, Charles Edwards | 2013-09-24 |
| 8507300 | Light-emitting diode with light-conversion layer | — | 2013-08-13 |
| 8418521 | Double closed hydraulic mould stand | Hanguan Xia, Juchen Xia, Guoan Hu, Xinyun Wang, Junsong Jin | 2013-04-16 |
| 8331799 | Non-feedback pre-encoder for optical DQPSK modulation | Lumin Zhang, Weisheng Hu | 2012-12-11 |
| 8302336 | Light emitting sign and display surface therefor | Yi-Qun Li, James Caruso, Charles Edwards | 2012-11-06 |
| 8211593 | Low platinum fuel cells, catalysts, and method for preparing the same | Tao Gu, Thomas R. Omstead, Ning Wang, Yi-Qun Li | 2012-07-03 |
| 8206766 | Method for using bamboo leaf extract as acrylamide inhibitor for heat processing food | Ying Zhang, Xiaoqin Wu, Yu Zhang, Genyi Zhang, Dingding Luo | 2012-06-26 |
| 8203260 | Color temperature tunable white light source | Yi-Qun Li, Xiaofeng Xu | 2012-06-19 |
| 8017035 | Silicate-based yellow-green phosphors | Ning Wang, Shifan Cheng, Yi-Qun Li | 2011-09-13 |
| 7985000 | Lighting apparatus having multiple light-emitting diodes with individual light-conversion layers | — | 2011-07-26 |
| D638012 | Portable personal financial device | WeiCheng Tian | 2011-05-17 |
| 7937865 | Light emitting sign and display surface therefor | Yi-Qun Li, James Caruso, Charles Edwards | 2011-05-10 |
| 7922937 | Two-phase silicate-based yellow phosphor | Yi-Qun Li, Shifan Cheng, Dejie Tao, Ning Wang | 2011-04-12 |
| 7906041 | Silicate-based green phosphors in red-green-blue (RGB) backlighting and white illumination systems | Yi-Qun Li, Dejie Tao, Shifan Cheng, Ning Wang | 2011-03-15 |
| 7887719 | Phosphor systems for a white light emitting diode (LED) | Ning Wang, Shifan Cheng, Yi-Qun Li | 2011-02-15 |
| D628201 | Base of personal financial device | WeiCheng Tian | 2010-11-30 |
| 7820075 | Phosphor composition with self-adjusting chromaticity | Yi-Qun Li | 2010-10-26 |
| 7755276 | Aluminate-based green phosphors | Ning Wang, Shifan Cheng, Yi-Qun Li, Ravilisetty P. Rao | 2010-07-13 |
| 7737636 | LED assembly with an LED and adjacent lens and method of making same | Yi-Qun Li, Wei Shan | 2010-06-15 |
| 7703943 | Color tunable light source | Yi-Qun Li, Xiaofeng Xu, Ian Collier | 2010-04-27 |