Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8062565 | Low density non-woven material useful with acoustic ceiling tile products | Donald S. Mueller, Bangji Cao, Qing Yu | 2011-11-22 |
| 7771851 | Gypsum-containing products containing alpha hemihydrate | Qiang Yu, Qiangxia Liu | 2010-08-10 |
| 7736720 | Composite light weight gypsum wallboard | Qiang Yu | 2010-06-15 |
| 7731794 | High starch light weight gypsum wallboard | Qiang Yu, Michael R. Lynn | 2010-06-08 |
| 6752895 | Water spray for smooth surface gypsum fiberboard panels | David Paul Miller | 2004-06-22 |
| 6699364 | Water spray for smooth surface gypsum fiberboard panels | David Paul Miller | 2004-03-02 |
| 6010596 | Gypsum wood fiber product having improved water resistance | — | 2000-01-04 |