Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881495 | Device for vaporizing a cryogenic fluid | Jean Tornare | 1989-11-21 |
| 4834904 | Nitrogen-containing heterocycles | Joachim Krause, Rudolf Eidenschink, Bernhard Scheuble, Thomas Geelhaar | 1989-05-30 |