Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392266 | Hydrogen combustion engine and passenger car and commercial vehicle | Alexander Mueller, Alexander Puck | 2025-08-19 |
| 11828207 | Internal combustion engine with at least one hollow-head valve | Heiko Heckendorn, Alexander Mueller, Alexander Puck | 2023-11-28 |
| 11247284 | Method for producing a hollow valve | Peter Kroos | 2022-02-15 |
| 11174763 | Gas exchange valve for an internal combustion engine | Stephan Koerner, Alexander Mueller, Alexander Puck, Reinhard Rose | 2021-11-16 |
| 10139222 | Method for the ultrasonic measurement of a wall thickness in hollow valves | Peter Kroos, Holger Schnell, Thomas Strelow, Richard Wlassa | 2018-11-27 |
| 9828892 | Device for producing at least one hollow valve | Peter Kroos | 2017-11-28 |
| 9790889 | Piston | Christoph Beerens, Dieter Emmrich, Uwe Mohr, Reinhard Rose | 2017-10-17 |
| 9611766 | Gas exchange valve of an internal combustion engine | Peter Kroos, Alexander Mueller, Alexander Puck | 2017-04-04 |
| 9382820 | Method for producing a built hollow valve | Peter Kroos, Alexander Mueller, Alexander Puck | 2016-07-05 |
| 9255559 | Metallic hollow valve | Peter Kroos, Roland Schacherer | 2016-02-09 |
| 8726873 | Moveable valve sealing body exposed to hot gases | Christoph Beerens, Andreas Hoffmann | 2014-05-20 |