Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646161 | Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents | Bernd Eck, Otto Machhammer, Theo Proll, Volker Schliephake, Klaus Bröllos | 2003-11-11 |
| 6541665 | Method for purifying acrylic acid or methacrylic acid by crystallization and distillation | Erik Bastiaensen, Bernd Eck | 2003-04-01 |