Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442259 | Aqueous-based polyurethane compositions and method of preparation | William D. DelVecchio | 1984-04-10 |
| 4421826 | Polyurethane polymer amine salt as a dyeing aid, particularly for polyolefin fibers | John L. Ohlson | 1983-12-20 |
| 4182649 | Polyurethane foam sheet and method | Andrew B. Holmstrem, Norman J. Hayes | 1980-01-08 |