Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136760 | Coated roofing granules, roofing materials made therefrom and methods of preparing coated roofing granules | David D. Kragten | 2021-10-05 |
| 11008254 | Building materials comprising agglomerated particles | Justin P. Dunlap, John Allen Horton, Olan Leitch | 2021-05-18 |