Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859784 | Process for the production of optically active cyanohydrins | Franz Effenberger, Thomas Ziegler | 1989-08-22 |
| 4298059 | Heat exchanger and process for its manufacture | Axel Krauth, Horst Maier, Hans-Juergen Phlmann, Manfred Kleeman | 1981-11-03 |