Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D865061 | Exit sign with U-shaped lower lighting | — | 2019-10-29 |
| 10373534 | Exit sign with multi-directional lighting | — | 2019-08-06 |
| D825003 | Exit sign | Qiu Yuan Yuan, Wang Zhi Wu | 2018-08-07 |
| 9990868 | Compact, convertible exit sign | Qiu Yuan Yuan, Wang Zhi Wu | 2018-06-05 |
| 8024880 | Combination exit sign and emergency light bar | Ping Shuo Kuan | 2011-09-27 |
| 6606808 | Exit sign with rotatable lighting heads | — | 2003-08-19 |
| D417689 | Illumination unit for an instrument | — | 1999-12-14 |