Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12332272 | Rolling bearing having position-determining device | Gunther Elfert | 2025-06-17 |
| 10590502 | Method for induction surface hardening of a ring surface | Marco Burtchen, Mathieu Langels | 2020-03-17 |
| 10167527 | Method and arrangement for progressive surface hardening | Marco Burtchen, Mathieu Langels | 2019-01-01 |
| 10053748 | Method for induction surface hardening of a ring surface | Marco Burtchen, Mathieu Langels | 2018-08-21 |
| 8091239 | Method for the production of a bearing ring for large-size rolling bearings | Joerg Rollmann, Wilfried Spintig, Kristian Berggren | 2012-01-10 |
| 7146735 | Method of making a bearing ring for a large roller bearing | Josef Bracht, Jörg Rollmann, Johannes Wozniak | 2006-12-12 |