Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361546 | Retard form of pharmaceuticals with insoluble porous diffusion coatings | Bernhard Freund, Heribert Harwalik, Karl L. Rominger, Siegfried Darda, Volkmar Haselbarth +5 more | 1982-11-30 |