Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4973389 | Process for making a high temperature-resistant metal layer on a ceramic surface | Hermann Middeke, Elke Zakel | 1990-11-27 |
| 4948674 | Method of applying a metal layer of large adhesive strength on enamels | Roland Herold, Eveline Dannenberg, Hermann Middeke | 1990-08-14 |