Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10626490 | Process and apparatus for thermochemically hardening workpieces | Volker Heuer | 2020-04-21 |
| 10196730 | Method and device for hardening workpieces, and workpieces hardened according to the method | Volker Heuer, Gunther Schmitt, Gerhard Welzig | 2019-02-05 |
| 6207931 | Method for the heat treatment of workpieces | Wilfried Zenker | 2001-03-27 |
| 6147328 | Apparatus for the heat treatment of workpieces | Wilfried Zenker | 2000-11-14 |
| 5630322 | Process and apparatus for heat treatment of workpieces by quenching with gases | Paul Heilmann, Friedrich Preisser | 1997-05-20 |