Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10304318 | Anti-masking assembly for intrusion detector and method of detecting application of a masking substance | Haidong Xu, Xuanjiao Li, Ning Zhang, Zhongying Huang | 2019-05-28 |
| 10267685 | Systems and methods for adjusting optical security sensor mirrors | Haidong Xu, Ning Zhang | 2019-04-23 |