Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8383233 | Ceiling tile base mat | Martin W. Brown, Qing Yu, Bangji Cao | 2013-02-26 |
| 8118928 | Cast ceiling tile | Qing Yu, Bangji Cao | 2012-02-21 |
| 8100226 | Porous nonwoven scrims in acoustical panels | Bangji Cao, Weixin D. Song | 2012-01-24 |