Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7947751 | Expandable resins | Grazyna Petela, Michel Florentine Jozef Berghmans, Karel Cornelis Bleijenberg | 2011-05-24 |
| 6908949 | Foamable interpolymer resin particles containing limonene as a blowing aid | Edwin H. Niemann | 2005-06-21 |
| 4853445 | Dibutylin compounds in styrene monomer polymerization | Bernard H. Meyer, Joseph C. Kinslow, D. Harper Meek | 1989-08-01 |
| 4840759 | Isopentane as blowing agent to improve coffee retention in foam cups molded from expandable polystyrene | Edwin H. Niemann | 1989-06-20 |
| 4798749 | Isopentane as blowing agent to improve coffee retention in foam cups molded from expandable polystrene | Edwin H. Niemann | 1989-01-17 |