Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8057915 | Acoustical gypsum board panel and method of making it | W. David Song, Qiang Yu, Martin W. Brown, Richard B. Stevens | 2011-11-15 |
| 8028803 | Molding a lightweight cast acoustical product | — | 2011-10-04 |
| 7875358 | Slurry and acoustical panel with reduced bound water | Daniel E. Boss | 2011-01-25 |
| 7862687 | Process for producing a low density acoustical panel with improved sound absorption | Qing Yu | 2011-01-04 |