Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962681 | Recovery of caprolactam monomer and oligomer from aqueous polycaprolactam extracts | Hans-Harald Hünger, Thomas Sauer | 1999-10-05 |
| 5788895 | Mass transfer in plate columns and apparatus for this purpose | Gerhard Altinger, Rudolf Kaiser, Fritz Thiessen | 1998-08-04 |
| 5780679 | Separation of (meth)acrylic acid from the reaction gas mixture formed in the catalytic gas phase oxidation of C.sub.3 /C.sub.4 compounds | Volker Diehl, Klaus Jorg | 1998-07-14 |