Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886892 | Process for the preparation of oxiranes | Rudolf Zerbes, Siegfried W. Linke | 1989-12-12 |
| 4874860 | Process for preparing 1,3,5-triazinetriones | Bernd Gallenkamp, Andreas Gunther, Thomas Schmidt | 1989-10-17 |