Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674531 | Nanoparticles containing an active substance and a ketalized polytartramidic acid, process for their preparation, and use thereof | Michael Ahlers, Axel Walch, Gregory John Russell-Jones | 1997-10-07 |