Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6315845 | Method of straightening sectional steel while simultaneously minimizing the internal stresses thereof | Georg Hartung, Lutz Kümmel, Bruno Bohmer | 2001-11-13 |
| 6059903 | Method of cooling sectional girders | Lutz Kümmel, Rolf Stodt, Heinz-Jürgen Oudehinken, Meinert Meyer, Hans-Georg Hartung | 2000-05-09 |
| 5992001 | Method and apparatus for connecting billets | Hans-Georg Hartung, Friedrich Hollmann, Paul-Josef Mauk | 1999-11-30 |
| 5902422 | Ferritic coiling of wire or bar steel | Meinert Meyer, Hans-Georg Hartung, Paul-Josef Mauk | 1999-05-11 |