Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1012879 | Megaphone for playground | Changhua Zhang, Xiaohua Zhang | 2024-01-30 |
| 8503183 | Input/output module for building automation system with mounting plate | Steve R. Hamilton, Michael B. Strozewski, Yuan Zhang | 2013-08-06 |