Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274642 | Storage-stable, blowing agent-containing emulsions for producing rigid foams based on isocyanate | Udo Rotermund, Renate Hempel, Werner Wiegmann, Marion Heinz | 2001-08-14 |
| 5916480 | Storage-stable emulsions for producing fine-celled rigid foams based on isocyanate | Udo Rotermund, Marion Heinz, Renate Hempel, Werner Wiegmann | 1999-06-29 |
| 5880168 | Open-celled rigid foams based on isocyanate | Marion Heinz, Werner Wiegmann, Udo Rotermund, Michael Reichelt | 1999-03-09 |