Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4939001 | Process for sealing anodized aluminum | Dieter Brodalla, Willi Wuest, Helmut Blum, Wolfgang Riedel | 1990-07-03 |
| 4756771 | Colorless sealing layers for anodized aluminum surfaces | Dieter Brodalla, Hans J. Goehausen | 1988-07-12 |
| 4445983 | Sealing anodically produced oxide layers, on aluminum | Hans J. Gohausen, Jurgen Lindener, Harald Wennemann | 1984-05-01 |