Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356308 | Process for the preparation of 2,2,6,6-tetramethylpiperidone-4 | Hartmut Wiezer, Harald Haberlein | 1982-10-26 |
| 4319030 | Alkylated diaza-spirodecanes | Hartmut Wiezer, Gerhard Pfahler, Harald Haberlein | 1982-03-09 |