Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8771589 | Spheroidal cast iron alloy parts and method for producing thereof | Werner Menk, Andreas Hecker, Torsten Rieck | 2014-07-08 |
| 7645814 | Core material | Alexander Schrey, Gotthard WOLF | 2010-01-12 |
| 5161967 | Process and device to feed additives into a shaft or cupola furnace | Axel Rudolph | 1992-11-10 |
| 5108496 | Method for the concentration of dusts in a cupola furnace with metal particles | Karl Gut, Hans-Ludwig Roes, Ivo Henych | 1992-04-28 |
| 5070797 | Process and device to feed additives into a shaft or cupola furnace | Axel Rudolph | 1991-12-10 |
| 4713180 | Ceramic filter and method for using same | Franz Hofmann, Hans G. Trapp, Jurgen Otto, Wolfgang P. Kaettlitz, Gerd Trinki | 1987-12-15 |
| 4711290 | Method and apparatus for casting iron treated with magnesium | Stefan Dersch, Max Riethmann | 1987-12-08 |