Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952683 | Process for the preparation of sphingosine derivatives | Roland Tschannen, Wolfgang Fraefel, Richard Schmidt, Peter Zimmermann | 1990-08-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952683 | Process for the preparation of sphingosine derivatives | Roland Tschannen, Wolfgang Fraefel, Richard Schmidt, Peter Zimmermann | 1990-08-28 |