Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10239102 | Rolling rod as an inner tool in the production of seamless metal hollow bodies and method for producing a metal hollow body | Rolf Kümmerling, Stéphanie Demars, Hélène Dalmont | 2019-03-26 |
| 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 | Rolf Kümmerling, Frank Hagemann, Gabriel Moniz Pereira, Ken Johnson, Brad Chamberlain | 2016-02-02 |