Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8316680 | Method of making a seamless hollow body from steel | Rolf Kümmerling | 2012-11-27 |
| 5958158 | Method of manufacturing hot-worked elongated products, in particular bar or pipe, from high alloy or hypereutectoidal steel | Heinz Kron, Karlheinz Kutzenberger, Gustav Zouhar | 1999-09-28 |