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 | Thomas Diehl, Helmut Gehrke, Dieter Wilken | 2015-06-30 |
| 8536397 | Recovery of benzene and benzene derivatives from gasoline fraction and refinery streams | Oliver Noll, Helmut Gehrke, Christian Luebbecke | 2013-09-17 |