Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700459 | Pharmacological composition containing polyelectrolyte complexes in microparticulate form and at least one active agent | Volker Krone, Axel Walch, Albrecht Groner, Dieter Hoffmann | 1997-12-23 |
| 5613494 | Polycondensates which contain tartaric acid derivatives, processes for their preparation and use thereof | Volker Krone, Axel Walch, Günter Ditzinger, Norbert Lill | 1997-03-25 |