Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8650737 | Making an elongated product | Jyri Jarvenkyla, Franz-Josef Riesselmann, Ralf Winterstein, Lars Hoving | 2014-02-18 |
| 8491744 | Method for the production of a cylindrical, strand-shaped part | Ralf Winterstein, Franz-Josef Riesselmann | 2013-07-23 |
| 8453310 | Making an elongated product | Jyri Jarvenkyla, Franz-Josef Riesselmann, Ralf Winterstein, Lars Hoving | 2013-06-04 |
| 6604552 | Metal-plastic multilayer pipe having form stability for plumbing and hydronic heating | Jorg Hansen, Alfred Feldkamp, Franz-Josef Riesselmann | 2003-08-12 |