Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865661 | Product of a high-strength nitrogen containing fully austenitic cobalt steel having yield strengths above 600 N/MM2 | Peter Dahlmann, Johannes Jachowski, Gerald Stein | 1989-09-12 |
| 4844747 | Process of producing a composite roll | Johannes Jachowski, Udo Riepe, Gerald Stein | 1989-07-04 |
| 4626464 | Wear resistant compound body | Johannes Jachowski, Helmut Klasing, Josef Blum | 1986-12-02 |
| 4619692 | Process for the production of metallic semi-finished products | Johannes Jachowski | 1986-10-28 |
| 4610734 | Process for manufacturing corrosion resistant chromium steel | Jurgen Hartwig | 1986-09-09 |
| 4584015 | Process and system for the production of very pure alloys | Jurgen Hartwig, Johannes Jachowski | 1986-04-22 |