Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4572743 | Method for pickling metallic surfaces | Dieter Muller | 1986-02-25 |
| 4447273 | Process for phosphating metallic surfaces in nonaqueous phosphating baths | Dieter Mueller, Hermann Fricke | 1984-05-08 |