Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422605 | Near infrared optical interference filters with improved transmission | Robert Sprague | 2025-09-23 |
| 11782262 | Optically enhanced light converter | David Zhang, Ying Cao, Lennon Li | 2023-10-10 |
| 11520137 | Wavelength conversion element with convective cooling | Guanghui Fu, Qiming Li | 2022-12-06 |
| 11448950 | Combination wheel for light conversion including both phosphor segments and color filters | James Li, David Zhang | 2022-09-20 |
| 11372144 | Near infrared optical interference filters with improved transmission | Robert Sprague | 2022-06-28 |
| 9470398 | Compact light engine | Simon Cao, Louis Chen | 2016-10-18 |