Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686439 | Chelate complexes and processes for their preparation | Hans-Georg Capraro | 1997-11-11 |
| 5670491 | Chelate complexes and processes for their preparation | Hans-Georg Capraro | 1997-09-23 |