Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5282890 | Process for producing brown covering layers on copper | Helmut Protzer, Constantin Puscasu, Stefan Hoveling | 1994-02-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5282890 | Process for producing brown covering layers on copper | Helmut Protzer, Constantin Puscasu, Stefan Hoveling | 1994-02-01 |