Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12000548 | Remote phosphor masks for retrofitting luminaires | Craig Eugene Marquardt, Qi Ai | 2024-06-04 |
| 5199470 | Method and apparatus for refilling ink cartridges | — | 1993-04-06 |