Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11608387 | High-viscosity lithium carboxymethyl cellulose and preparation method therefor and application thereof | Zhenzhen Nie, Yinfeng Xia, Youqi Li, Haitao Zhang, Kun Du +4 more | 2023-03-21 |
| 11597677 | Wool surface treated with hydrophobic agent and acoustic panels made therefrom | Wenqi Luan, Martin W. Brown, Scott A. Bogen, Carlos Figi | 2023-03-07 |
| 8511429 | Ceiling panels made from corrugated cardboard | Mark C. Englert | 2013-08-20 |
| 8383233 | Ceiling tile base mat | Gregory O. Palm, Martin W. Brown, Bangji Cao | 2013-02-26 |
| 8251175 | Corrugated acoustical panel | Mark C. Englert | 2012-08-28 |
| 8118928 | Cast ceiling tile | Bangji Cao, Gregory O. Palm | 2012-02-21 |
| 8062565 | Low density non-woven material useful with acoustic ceiling tile products | Donald S. Mueller, Bangji Cao, Weixin D. Song | 2011-11-22 |
| 7862687 | Process for producing a low density acoustical panel with improved sound absorption | Mark H. Englert | 2011-01-04 |