Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9914814 | Polar polystyrene copolymers for enhanced foaming | Wei Wang, David Knoeppel | 2018-03-13 |
| 8912242 | Polar polystyrene copolymers for enhanced foaming | Wei Wang, David Knoeppel | 2014-12-16 |