Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216082 | Acrylic molding compositions | Ernst Heil, Uwe Numrich, Barbara Geppart, Thomas Rhein | 1993-06-01 |
| 4543383 | Impact resistant resins and method for making the same | Ernst Heil, Franz Wenzel, Peter J. Arndt | 1985-09-24 |