Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791210 | Process for the production of 5-methyltetrazole | Gunter Bison, Johannes Schlupp, Klaus Thewalt | 1988-12-13 |
| 4190592 | Process for splitting the L-(-)-.alpha.-phenylethylamine salt of D-(-)-.alpha.-azidophenylacetic acid | Gunter Bison, Reiner Elfgen, Walter Heinzelmann, Wolfgang Wolfes | 1980-02-26 |