Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9068125 | Process for the recovery of pure aromatics from hydrocarbon fractions containing aromatics | Helmut Gehrke, Baerbel Kolbe, Dieter Wilken | 2015-06-30 |
| 6720441 | Recovery and purification of substituted benzenesulfonates | Rainald Forbert | 2004-04-13 |