Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754383 | Faulted circuit indicatior with variable load levelling circuit | Hendrik Horstmann | 1998-05-19 |
| 4992155 | Circuitry for the electrolytic coloring of anodized aluminum surfaces | Dieter Brodalla, Georg Wagner, James W. Costello, Karl-Heinz Munk | 1991-02-12 |
| 4915801 | Process for the electrolytic coloring of anodized aluminum surfaces | Dieter Brodalla, Georg Wagner, James W. Costello, Karl-Heinz Munk | 1990-04-10 |