Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10695809 | Method for producing hot-rolled seamless pipes having thickened ends | Henrike Bröker, Thorsten Anke | 2020-06-30 |
| 10239102 | Rolling rod as an inner tool in the production of seamless metal hollow bodies and method for producing a metal hollow body | Nils Schäfer, Stéphanie Demars, Hélène Dalmont | 2019-03-26 |
| 9937540 | Piercing mandrel having an improved service life for producing seamless tubes | Winfried Braun, Christian Klempel, Rene Baadjou | 2018-04-10 |
| 9381554 | Method for producing seamless hot-rolled pipes in continuous pipe rolling mills | Christoph Prasser, Gerd Homberg, Frank Hagemann, Gabriel Pereira, Winfried Braun | 2016-07-05 |
| 9248483 | Method and device for the optimized circulation of rods in the production of a seamlessly hot-fabricated steel pipe according to the continuous pipe method | Frank Hagemann, Gabriel Moniz Pereira, Nils Schäfer, Ken Johnson, Brad Chamberlain | 2016-02-02 |
| 9056341 | Method for producing seamless tubes by means of a three-roll bar rolling mill | Manfred Bellmann, Winfried Braun, Hidenori Kinugasa, Sasaki Kenichi | 2015-06-16 |
| 8316680 | Method of making a seamless hollow body from steel | Gunther Manig | 2012-11-27 |
| 8166792 | Method of making a seamless hot-finished steel pipe, and device for carrying out the method | Christoph Prasser, Stefan Wiedenmaier, Pierre Lefebvre, Rupert Wieser, Robert Koppensteiner | 2012-05-01 |
| 6006570 | Method and device for producing a hollow body from solid round steel | Adolf Kindsgrab, Rolf Pieters | 1999-12-28 |
| 5357773 | Method of longitudinal rolling of seamless pipe | Johann H. Rohde, Burkhart Schifferings, Jochen Vochsen, Karl Hausler, Gunther Voswinckel | 1994-10-25 |
| 5115656 | Method and apparatus for manufacturing medium-walled and thin-walled seamless pipes | Manfred Bellmann, Horst Biller | 1992-05-26 |
| 4408477 | Adjustable press tool | Robert Poos, Thomas Pentzien, Karl-Heinz Papierok | 1983-10-11 |
| 4392369 | Diagonal rolling of hollow stock | Detlef Ramdohr, Walter Knauf, Karl-Heinz Brensing | 1983-07-12 |