Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12415765 | Board with fiber-reinforced dense layer | Mark Hemphill, Yijun Sang, Nicholas S. JONES, Kevern O. FRASER, Jon CROSS +1 more | 2025-09-16 |
| 12281045 | Methods for reclaiming gypsum panels that contain hydrophobic materials and use thereof | Rudy A. Schermann, Alfred C. Li, Blair Walker, Te Hua Lau, Stephen Erickson +2 more | 2025-04-22 |
| 12162803 | Foam modifiers for gypsum slurries, methods, and products | Weixin D. Song, Alfred C. Li | 2024-12-10 |
| 12090744 | Composite gypsum board and methods related thereto | Alfred C. Li, Weixin D. Song, Yijun Sang, Gregg G. Diefenbacher, Brian J. Christ +2 more | 2024-09-17 |
| 11584690 | Multi-layer gypsum board and related methods and slurries | Alfred C. Li | 2023-02-21 |
| 11267759 | Method and system for on-line blending of foaming agent with foam modifier for addition to cementitious slurries | Alfred C. Li, Weixin D. Song | 2022-03-08 |
| 11040513 | Composite gypsum board and methods related thereto | Alfred C. Li, Weixin D. Song, Yijun Sang, Gregg G. Diefenbacher, Brian J. Christ +2 more | 2021-06-22 |
| 10968138 | Gypsum slurries with linear polycarboxylate dispersants | Alfred C. Li, Mario Dupuis, Iordana Triantafillu, Francis Loiseau | 2021-04-06 |
| 10662112 | Method and system for on-line blending of foaming agent with foam modifier for addition to cementitious slurries | Alfred C. Li, Weixin D. Song | 2020-05-26 |
| 10442732 | Gypsum slurries with linear polycarboxylate dispersants | Alfred C. Li, Mario Dupuis, Iordana Triantafillu, Francis Loiseau | 2019-10-15 |
| 10421250 | Composite gypsum board and methods related thereto | Alfred C. Li, Weixin D. Song, Yijun Sang, Gregg G. Diefenbacher, Brian J. Christ +2 more | 2019-09-24 |
| 10421251 | Composite gypsum board and methods related thereto | Alfred C. Li, Weixin D. Song, Yijun Sang, Gregg G. Diefenbacher, Brian J. Christ +2 more | 2019-09-24 |
| 10407344 | Foam modifiers for gypsum slurries, methods, and products | Weixin D. Song, Alfred C. Li | 2019-09-10 |