Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264634 | Monitoring the ventilation of a crankcase of an internal combustion engine | Gerhard Haft, Michael Nienhoff, Fabian Fink | 2025-04-01 |
| 11986811 | Exhaust gas aftertreatment device | Holger Stock, Philipp Langenfeld, Peter Hirth, Erwin Achleitner, Gerhard Haft +1 more | 2024-05-21 |
| 11725602 | Method for ascertaining the nitrogen oxide fraction and/or ammonia fraction in the exhaust gas of an internal combustion engine | Gerhard Haft, Erwin Achleitner, Florian Kleiner | 2023-08-15 |
| 11578636 | Method for determining the oxygen load of a catalytic converter of an internal combustion engine, and exhaust system of an internal combustion engine | Gerhard Haft, Hong Zhang | 2023-02-14 |
| 11136911 | Method and device for diagnosis of a particle filter arranged in the exhuast gas system of a petro-operated internal combustion engine | Michael Nienhoff, Hao Chen | 2021-10-05 |
| 10808593 | Exhaust gas treatment for an internal combustion engine | Michael Nienhoff, Hong Zhang, Hao Chen | 2020-10-20 |
| 10301997 | Method for checking a temperature sensor in an SCR exhaust gas post-treatment system | Michael Nienhoff, Ingo Koops, Tino Arlt | 2019-05-28 |
| 10132218 | Exhaust system for a motor vehicle | Michael Nienhoff, Tino Arlt, Thomas Schoen | 2018-11-20 |
| 9938910 | Modeling oil dilution using a multicomponent model | Gerhard Haft, Jan-Richard Lenk, Sebastian Viehoever | 2018-04-10 |
| 9625346 | Method and device for checking the hydraulic leak-tightness in an exhaust gas aftertreatment system for a motor vehicle | Michael Nienhoff | 2017-04-18 |
| 9255533 | Method for checking the outgassing of fuel and control unit | Sebastian Viehöver | 2016-02-09 |
| 9086008 | Method and device for operating an internal combustion engine | Thorsten Rosenkranz, Sebastian Viehöyer | 2015-07-21 |
| 8997726 | Method for diagnosing a liquid-cooled exhaust manifold of an internal combustion engine | Gerhard Eser | 2015-04-07 |
| 8839604 | Method and apparatus for operating an internal combustion engine | Sebastian Viehöver | 2014-09-23 |
| 8808630 | Exhaust gas catalytic converter system and method for operating an exhaust gas catalytic converter | Michael Nienhoff | 2014-08-19 |
| 8695573 | Hydrocarbon sensor to regulate flow rate in a fuel line | Rudolf Bierl, Stephan Heinrich, Wolfgang Mai, Manfred Weigl, Andreas Wildgen | 2014-04-15 |
| 8600646 | Method for regulating an air/fuel ratio and method for recognizing a fuel quality | Gerhard Haft | 2013-12-03 |
| 8394172 | Method for rapidly emptying the activated carbon filter while using an HC sensor (concentration change) | Rudolf Bierl, Stephan Heinrich, Wolfgang Mai, Manfred Weigl, Andreas Wildgen | 2013-03-12 |
| 8387592 | Method and apparatus for operating an internal combustion engine | Gerd Rösel | 2013-03-05 |
| 8312868 | Method, device, and system for operating an internal combustion engine | Rudolf Bierl, Stephan Heinrich, Wolfgang Mai, Manfred Weigl, Andreas Wildgen | 2012-11-20 |
| 8239117 | Method and device for operating an internal combustion engine | Gerald Rieder | 2012-08-07 |
| 8037671 | Method and device for the calibration of an exhaust gas probe, and method and device for the operation of an internal combustion engine | Gerd Rösel | 2011-10-18 |
| 8027779 | Method and device for operating an internal combustion engine having lambda control | Gerald Rieder | 2011-09-27 |
| 7885753 | Method and device for operating an internal combustion engine | Erwin Achleitner, Dirk Baranowski, Carlos Eduardo Migueis | 2011-02-08 |
| 7835849 | Method and device for operating an internal combustion engine | Gerald Rieder | 2010-11-16 |