Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10544277 | Process for making gray expanded polystyrene | Paul Hanna, William P. Cottom, Jeff Brooks | 2020-01-28 |
| 10414895 | Color development of carbon black in expanded polystyrene | Paul Hanna, William P. Cottom | 2019-09-17 |