Issued Patents All Time
Showing 26–50 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8506912 | Exhaust treatment system including a nickel-based catalyst | Hungwen Jen, Eva Thanasiu | 2013-08-13 |
| 8353276 | System and method for storing crankcase gases to improve engine air-fuel control | Donald J. Lewis | 2013-01-15 |
| 8347611 | Methods and systems for emission system control | William Charles Ruona, Brien Lloyd Fulton, Gopichandra Surnilla, Eric Matthew Kurtz | 2013-01-08 |
| 8347609 | Methods and systems for emission system control | William Charles Ruona, Brien Lloyd Fulton, Gopichandra Surnilla, Eric Matthew Kurtz | 2013-01-08 |
| 8341947 | System and method for regenerating a particulate filter | David Karl Bidner, Helmut Hans Ruhland, Moritz Klaus Springer, Thomas Lorenz, Georg Louven +5 more | 2013-01-01 |
| 8336300 | System and method for regenerating a particulate filter accompanied by a catalyst | Helmut Hans Ruhland, Moritz Klaus Springer, Thomas Lorenz, Georg Louven | 2012-12-25 |
| 8181452 | Particulate filter regeneration during engine shutdown | David Karl Bidner, Ralph Wayne Cunningham | 2012-05-22 |
| 8096125 | Methods and systems for emission system control | William Charles Ruona, Brien Lloyd Fulton, Gopichandra Surnilla, Eric Matthew Kurtz | 2012-01-17 |
| 7240482 | System for minimizing the impact of poisoning of automotive exhaust aftertreatment systems | Carolyn Parks Hubbard, Gang Guo, Lifeng Xu, Robert Walter McCabe | 2007-07-10 |
| 6915630 | Engine control for a vehicle equipped with an emission control device | Gopichandra Surnilla, John M. Roth | 2005-07-12 |
| 6813882 | System and method for removing NOx from an emission control device | Robert Henry Hammerle | 2004-11-09 |
| 6810660 | System for minimizing the impact of poisoning of automotive exhaust aftertreatment systems | Carolyn Parks Hubbard, Gang Guo, Lifeng Xu, Robert Walter McCabe | 2004-11-02 |
| 6684631 | Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine | Gopichandra Surnilla, Jerry D. Robichaux, Michael John Cullen | 2004-02-03 |
| 6644097 | Method and apparatus for inferring fuel mixture | Christopher Kirk Davey, David Robert Nader, Michael Igor Kluzner, Robert Joseph Jerger | 2003-11-11 |
| 6594989 | Method and apparatus for enhancing fuel economy of a lean burn internal combustion engine | Gopichandra Surnilla, Jerry D. Robichaux, Michael John Cullen | 2003-07-22 |
| 6574953 | NOx purge air/fuel ratio selection | Grant Alan Ingram, Gopichandra Surnilla, John M. Roth, Joseph Robert Theis | 2003-06-10 |
| 6546718 | Method and system for reducing vehicle emissions using a sensor downstream of an emission control device | JoAnne Temple, Mark Allen Dearth | 2003-04-15 |
| 6499293 | Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine | Gopichandra Surnilla, Jerry D. Robichaux, Michael John Cullen | 2002-12-31 |
| 6487853 | Method and system for reducing lean-burn vehicle emissions using a downstream reductant sensor | JoAnne Temple, Mark Allen Dearth | 2002-12-03 |
| 6453666 | Method and system for reducing vehicle tailpipe emissions when operating lean | Gopichandra Surnilla, Jerry D. Robichaux, Michael John Cullen | 2002-09-24 |
| 6434930 | Method and apparatus for controlling lean operation of an internal combustion engine | Michael John Cullen, David Karl Bidner, Gopichandra Surnilla, Jerry D. Robichaux | 2002-08-20 |
| 6378359 | Method and system for evaluating exhaust on-board diagnostics system | Douglas Allen Dobson, Michael Igor Kluzner, Robert Joseph Jerger, Timothy Brian Chanko, William L. H. Watkins | 2002-04-30 |
| 6360530 | Method and apparatus for measuring lean-burn engine emissions | Jerry D. Robichaux, Gopichandra Surnilla, Michael John Cullen | 2002-03-26 |
| 6296822 | Process for manufacturing nox traps with improved sulfur tolerance | John Denari, William L. H. Watkins | 2001-10-02 |
| 6272849 | Apparatus and method for heating an automotive catalyst to an emission reactive condition | Margherita Zanini-Fisher, Eva Thanasiu | 2001-08-14 |