Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5312541 | Improvements in processes for coloring anodized aluminum and/or aluminum alloys | Jean-Francois Paulet, Bruno Boetsch, Günther Tscheulin, Hans Bohler | 1994-05-17 |
| 4235682 | Sealing solution and process to prevent deposits forming during the sealing of anodized aluminum surfaces | Walter Zweifel, Hermann Weber | 1980-11-25 |