Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885418 | Process for removing metal halides from liquid organic water-immiscible substances | Sigurd Hartung, by Birgit Hartung-Merse, heir, Uwe Beck, Ulrich Kappler, Andreas Grafe | 1989-12-05 |
| 4853191 | Process for the removal of sulfur-containing gases | Wilhelm Bruening, Rudolf Uchdorf | 1989-08-01 |