Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270330 | Waste foamed polystyrene material reclaiming system | Shao-Szu Cheng | 2001-08-07 |
| 4203936 | Water slurry process for manufacturing phenolic resin bonded friction materials | Robert S. Kiwak | 1980-05-20 |