Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882082 | Nitrogen-containing hetercyclic compounds | Rudolf Eidenschink, Joachim Krause, Reinhard Hittich, Bernhard Scheuble, Georg Weber +1 more | 1989-11-21 |
| 4877882 | Process for the preparation of D-(+)-biotin | Michael Casutt | 1989-10-31 |
| 4871469 | Nematic liquid-crystalline phases | Volker Reiffenrath, Joachim Krause, Thomas Geelhaar, Rudolf Eidenschink, Hans-Adolf Kurmeier +2 more | 1989-10-03 |
| 4837402 | Process for the preparation of D-(+)-biotin | Michael Casutt | 1989-06-06 |