Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5476994 | Method for extracting metals from sediment | — | 1995-12-19 |
| 5197678 | Polystyrene recycling process | Martin Stanczyk, Michael R. Grubbs | 1993-03-30 |
| 5060870 | Polystyrene recycling process | Martin Stanczyk, Michael R. Grubbs | 1991-10-29 |