Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284647 | Mesotetraphenylporphyrin complex compounds, process for their production and pharmaceutical agents containing them | Ulrich Niedballa, Hanns-Joachim Weinmann, Heinz Gries, Sabina Hofmann, Ulrich Speck | 1994-02-08 |
| 5275801 | 13,17-propionic acid and propionic acid derivative substituted porphyrin complex compounds, process for their production and pharmaceutical agents containing them | Ulrich Niedballa, Heinz Gries, Ulrich Speck | 1994-01-04 |