Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9115659 | Method for reducing the particle emissions of a spark-ignition internal combustion engine with direct injection, and internal combustion engine for carrying out such a method | Thomas Lorenz, Helmut Hans Ruhland, Jan Mehring | 2015-08-25 |
| 9051874 | Internal combustion engine with partial deactivation and method for the operation of an internal combustion engine of said type | Helmut Hans Ruhland, Albert Breuer, Thomas Lorenz, Jan Linsel | 2015-06-09 |
| 9004020 | Method for warming an internal combustion engine, and internal combustion engine | Jan Mehring, Bernd Steiner, Thomas Lorenz | 2015-04-14 |
| 8875494 | Fuel control for spark ignited engine having a particulate filter system | Carolyn Parks Hubbard, Robert Walter McCabe, Eva Thanasiu, Jeffrey Scott Hepburn, Helmut Hans Ruhland +3 more | 2014-11-04 |
| 8833060 | Method for operating a spark-ignition internal combustion engine with exhaust gas aftertreatment | Helmut Hans Ruhland, Brendan Patrick Carberry | 2014-09-16 |
| 8783020 | Exhaust system for internal combustion engines with particle filter | Helmut Hans Ruhland, Thomas Lorenz, Georg Louven, Jens Dunstheimer | 2014-07-22 |
| 8746201 | Oil drain system bypass | Hans Guenter Quix, Jan Mehring | 2014-06-10 |
| 8464514 | Method for regenerating a particulate filter for a boosted direct injection engine | James Michael Kerns, Ralph Wayne Cunningham, Helmut Hans Ruhland, Thomas Lorenz, Georg Louven +1 more | 2013-06-18 |
| 8402943 | Method for controlling spark for particulate filter regenerating | Helmut Hans Ruhland, Thomas Lorenz, Georg Louven | 2013-03-26 |
| 8402944 | Method and system for pre-ignition control | Thomas Lorenz, Helmut Hans Ruhland, Georg Louven | 2013-03-26 |
| 8387370 | System for regenerating a particulate filter and controlling EGR | Michiel J. Van Nieuwstadt, Helmut Hans Ruhland, Thomas Lorenz, Georg Louven, Jan Harmsen | 2013-03-05 |
| 8359839 | System and method for regenerating a particulate filter for a direct injection engine | Michiel J. Van Nieuwstadt, Helmut Hans Ruhland, Thomas Lorenz, Georg Louven, Jan Harmsen | 2013-01-29 |
| 8359840 | Method for adjusting boost pressure while regenerating a particulate filter for a direct injection engine | Michiel J. Van Nieuwstadt, Helmut Hans Ruhland, Thomas Lorenz, Georg Louven, Jan Harmsen | 2013-01-29 |
| 8341947 | System and method for regenerating a particulate filter | Jeffrey Scott Hepburn, David Karl Bidner, Helmut Hans Ruhland, Thomas Lorenz, Georg Louven +5 more | 2013-01-01 |
| 8336300 | System and method for regenerating a particulate filter accompanied by a catalyst | Jeffrey Scott Hepburn, Helmut Hans Ruhland, Thomas Lorenz, Georg Louven | 2012-12-25 |
| 8196568 | Cold start gas component retention system in EGR circuit with recirculated gas control | Thomas Lorenz, Helmut Hans Ruhland | 2012-06-12 |
| 8156923 | Method and system for pre-ignition control | Thomas Lorenz, Helmut Hans Ruhland, Georg Louven | 2012-04-17 |
| 8136505 | Method for controlling spark for particulate filter regenerating | Helmut Hans Ruhland, Thomas Lorenz, Georg Louven | 2012-03-20 |