Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6596901 | Method for purifying acrylic acid and methacrylic acid | Bernd Eck, Otto Machhammer, Theo Proll, Volker Schliephake | 2003-07-22 |
| 6518453 | Method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization | Heinz Friedrich Sutoris, Gerhard Wagenblast, Volker Schliephake, Jürgen Schröder, Harald Keller +1 more | 2003-02-11 |