Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5059306 | Process for removing pure aromatics | Hans-Joachim Kramer, Bruno Schulwitz, Peter M. Lange, Alfred Mitschker | 1991-10-22 |
| 4405500 | Halogen compound promoted Al.sub.2 O.sub.3 and/or SiO.sub.2 for the preparation of isoalkenes | Hans-Jurgen Muller, Helmar Honig | 1983-09-20 |