Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7671717 | Unrecoverable line-type temperature sensitive detector having short-circuit fault alarm function | Gangjin Li | 2010-03-02 |
| 7578617 | Analog line-type temperature sensitive fire detection cable | Gangjin Li | 2009-08-25 |