Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992155 | Circuitry for the electrolytic coloring of anodized aluminum surfaces | Dieter Brodalla, Werner Huppertz, Georg Wagner, James W. Costello | 1991-02-12 |
| 4915801 | Process for the electrolytic coloring of anodized aluminum surfaces | Dieter Brodalla, Werner Huppertz, Georg Wagner, James W. Costello | 1990-04-10 |