Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900397 | Production of magnetic recording media | Arend Werner, Hartmut Hibst, Erich Haedicke | 1990-02-13 |
JK
Johann Kronenbitter
Overall (All Time): #3,895,831 of 4,157,543Top 95%
1
Patents All Time