Issued Patents 1989
Showing 1–1 of 1 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, Alfred Mitschker, Andreas Grafe | 1989-12-05 |