Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10906077 | Direct or indirect metal pipe extrusion process, mandrel for extruding metal pipes, metal pipe extruder and extruded metal pipe | Jens Magenheimer, Anna Rott, Koos van Putten | 2021-02-02 |
| 10882091 | Extruder and tube extruder or metal extrusion press | — | 2021-01-05 |
| 10670052 | Synchronizing cylinder for extruder | Hermann-Josef Klingen, Ekhard Siemer, Karl Herrmann Claasen, Valentin GALA LOSADA, Andreas Wershofen-Crombach | 2020-06-02 |
| 10166585 | Extruder and tube extruder or metal extrusion press | Karl Claasen | 2019-01-01 |
| 9649680 | Method for producing metal extrusion press products, and extrusion and tube press | Stephan Frehe, Andreas Wershofen-Crombach, Cornelio Lioni | 2017-05-16 |
| 9586247 | Extrusion press and tube press and method for separating a butt | Hermann-Josef Dueppers | 2017-03-07 |
| 9272317 | Method for operation of an indirect extrusion press and an indirect extrusion press | — | 2016-03-01 |
| 8459085 | Method of and apparatus for making pipe from a tubular workpiece | Klaus Steingiesser | 2013-06-11 |
| 7815830 | Method and device for extrusion pressing of bent extruded profiles | Joachim Ohlberg, Markus König, James Thomas Camp, Wilfried Geven | 2010-10-19 |
| 7779662 | Extruder and pipe extruder | — | 2010-08-24 |
| 7448245 | Extruding press for billets and tubes | Valentin Gala, Wilfried Geven | 2008-11-11 |
| 7421874 | Main cylinder or press cylinder of an extrusion/tube extrusion press | Karl Claasen | 2008-09-09 |
| 7219523 | Extruder for making curved metal workpiece | — | 2007-05-22 |
| 7201571 | Method for extrusion and extrusion plant, in particular for production of bent extruded products | Joachim Graefe | 2007-04-10 |
| 6952942 | Discharge device of an extruding installation | Joachim Graefe | 2005-10-11 |
| 6082162 | Multiple-cylinder extrusion press | Karl Claasen | 2000-07-04 |
| 5907968 | Apparatus for stepwise transverse conveyance of profiles between the outlet of a metal extrusion press and a stretcher leveller | Josef Vetten, Bernhard Zeuch, Alfred Steinmetz | 1999-06-01 |
| 5657661 | Working method for loading an extrusion billet and metal extrusion press | — | 1997-08-19 |