Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7510135 | Grinding roll | Egbert Burchardt, Johann Knecht, Norbert Patzelt | 2009-03-31 |
| 6032882 | Method for circulation grinding of brittle grinding stock and grinding apparatus therefor | Akbar Farahmand | 2000-03-07 |