Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11040513 | Composite gypsum board and methods related thereto | Alfred C. Li, Weixin D. Song, Yijun Sang, Gregg G. Diefenbacher, Annamaria Vilinska +2 more | 2021-06-22 |
| 11008257 | Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto | Yijun Sang | 2021-05-18 |
| 10919808 | Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto | Yijun Sang | 2021-02-16 |