Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |