Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883900 | Process for the preparation of aspartame and agents for carrying it out | Reinhold Keller, Merten Schlingmann | 1989-11-28 |
| 4745059 | Process for the preparation of L-phenylalanine | Hartmut Voelskow, Reinhold Keller, Merten Schlingmann, Johann Then, Gerhard Wohner | 1988-05-17 |