Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481171 | Gypsum compositions and related methods | Qiang Yu, Frederick T. Jones | 2002-11-19 |
| 6409824 | Gypsum compositions with enhanced resistance to permanent deformation | Qiang Yu, Michael P. Shake | 2002-06-25 |
| 6409825 | Wet gypsum accelerator and methods, composition, and product relating thereto | Qiang Yu | 2002-06-25 |
| 6387172 | Gypsum compositions and related methods | Qiang Yu, Frederick T. Jones | 2002-05-14 |