Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197678 | Polystyrene recycling process | George Trezek, Michael R. Grubbs | 1993-03-30 |
| 5060870 | Polystyrene recycling process | George Trezek, Michael R. Grubbs | 1991-10-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197678 | Polystyrene recycling process | George Trezek, Michael R. Grubbs | 1993-03-30 |
| 5060870 | Polystyrene recycling process | George Trezek, Michael R. Grubbs | 1991-10-29 |