Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8973325 | Method for roof drainage | Hongxiang Chai, Songming Tan, HONG-TAO WU, Weijie Wang, Ganlin Zhang +3 more | 2015-03-10 |
| 8950123 | Rainwater head | Hongxiang Chai, Songming Tan, HONG-TAO WU, Weijie Wang, Ganlin Zhang +3 more | 2015-02-10 |