Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11639429 | Pre-dried polystyrene/alumina compound for foam extrusion | Fengkui Li, Jon Tippet, Kenneth P. Blackmon, David Knoeppel, John Gaustad +2 more | 2023-05-02 |
| 11414529 | Polystyrene compositions for foam extrusion | Fengkui Li, Ying Wang, Wyman Stephens | 2022-08-16 |