Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970337 | Actuator for valves in internal combustion engines | Berthold Herrmann, Bjoern Jonas Ozdyk, Halim Celik, Matthias Boutros-Mikhail, Kai Sassenrath | 2018-05-15 |
| 9719608 | Actuator for valves in internal combustion engines | Berthold Herrmann, Bjoern Jonas Ozdyk, Halim Celik | 2017-08-01 |
| 9695781 | Valve system for internal combustion engines | — | 2017-07-04 |
| 9638141 | Exhaust gas valve device for an internal combustion engine | Guido Barabasch, Osman Sari, Norbert Simons, Rafael Soglowek | 2017-05-02 |
| 9086006 | Valve device for internal combustion engines | Berthold Herrmann, Peter Burgfels | 2015-07-21 |
| 8047502 | Combined check and control valve | — | 2011-11-01 |
| 6817173 | Method and device for simultaneous regulation of an intake air flow for an internal combustion engine and a secondary air flow in the exhaust system of the same internal combustion engine | Karl-Ernst Hummel, Jochem Fischer | 2004-11-16 |
| 6655348 | Port system, especially an induction manifold for an internal combustion engine | Thomas Jessberger, Arthur Klotz, Rudolf Leipelt, Stefan Maier, Herbert Pietrowski +2 more | 2003-12-02 |
| 6591805 | Port system, especially an induction manifold for an internal combustion engine | Jan Karlsson, Arthur Klotz, Rudolf Leipelt, Stefan Maier, Robert Vaculik | 2003-07-15 |
| 6478011 | Air intake device for an internal combustion engine | — | 2002-11-12 |
| 6435152 | Induction device for an internal combustion engine | Rudolf Leipelt | 2002-08-20 |
| 6334436 | Secondary air system for an internal combustion engine | Olaf Weber | 2002-01-01 |
| 6247438 | Intake pipe with shift drum | Hans-Joachim Esch, Rudolf Leipelt | 2001-06-19 |
| 6216657 | Process for regulating air consumption in the intake tract of an internal combustion engine and intake pipe for carrying out the process | Thomas Pauer | 2001-04-17 |
| 6094909 | Secondary air system for an internal combustion engine | Olaf Weber | 2000-08-01 |