Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866102 | Moldable energy absorbing rigid polyurethane foams | John R. Stoll, Peter F. Plank | 1989-09-12 |
| 4803229 | Modified polyisocyanate compositions and molded flexible polyurethane foam | Thirumurti Narayan, John R. Stoll | 1989-02-07 |