Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5169925 | Polymeric polyalkyl-1-oxa-diazaspirodecanes | Georg Schmailzl, Gerhard Pfahler | 1992-12-08 |
| 5107043 | Process for the preparation a bis(3,3-bis(4-hydroxyalkylphenyl)butanoic acid)diol ester | Georg Schmailzl, Josef Wiedemann, Gerhard Pfahler | 1992-04-21 |
| 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 |