Issued Patents All Time
Showing 25 most recent of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11125176 | Methods and system for determining engine air-fuel ratio imbalance | Robert Roy Jentz, Kenneth John Behr, Christopher R. Weber, Andrew P. Bagnasco | 2021-09-21 |
| 10968853 | Method and system for air-fuel ratio control | Gopichandra Surnilla, Imad Hassan Makki, Adithya Pravarun Re Ranga, Hassene Jammoussi, Robert Roy Jentz +1 more | 2021-04-06 |
| 10570844 | Air/fuel imbalance monitor | John Eric Rollinger, Robert Roy Jentz | 2020-02-25 |
| 10337430 | Method and system for determining air-fuel ratio imbalance | Hassene Jammoussi, Imad Hassan Makki, Gopichandra Surnilla, Robert Roy Jentz | 2019-07-02 |
| 10330040 | Method and system for air-fuel ratio control | Gopichandra Surnilla, Imad Hassan Makki, Adithya Pravarun Re Ranga, Hassene Jammoussi, Robert Roy Jentz +1 more | 2019-06-25 |
| 9885305 | Method for reducing cylinder air-fuel ratio imbalance | Hassene Jammoussi, Imad Hassan Makki, Robert Roy Jentz | 2018-02-06 |
| 9759148 | Method and system for determining air-fuel ratio imbalance via engine torque | Hassene Jammoussi, Imad Hassan Makki, Robert Roy Jentz | 2017-09-12 |
| 9752517 | Method for air/fuel imbalance detection | John Eric Rollinger, Robert Roy Jentz | 2017-09-05 |
| 9683506 | Method and system for determining air-fuel ratio imbalance | Hassene Jammoussi, Imad Hassan Makki, Robert Roy Jentz | 2017-06-20 |
| 9657674 | Method and system for determining air-fuel ratio imbalance | Hassene Jammoussi, Imad Hassan Makki, Robert Roy Jentz | 2017-05-23 |
| 9353708 | Method and system for fuel vapor control | Aed M. Dudar, Robert Roy Jentz, Timothy DeBastos, James Michael Kerns | 2016-05-31 |
| 8973558 | Method and system for fuel vapor control | Aed M. Dudar, Robert Roy Jentz, Timothy DeBastos, James Michael Kerns | 2015-03-10 |
| 8725347 | System and method for performing evaporative leak diagnostics in a vehicle | Robert Roy Jentz, David Allen Clemens, Ann Irene Sipes, Aed M. Dudar | 2014-05-13 |
| 8639431 | Fuel identification based on crankshaft acceleration | Robert Roy Jentz, John Eric Rollinger, Brandon M. Dawson | 2014-01-28 |
| 8560167 | System and method for performing evaporative leak diagnostics in a vehicle | Robert Roy Jentz, David Allen Clemens, Ann Irene DeZelia, Aed M. Dudar | 2013-10-15 |
| 8401764 | Fuel identification based on crankshaft acceleration | Robert Roy Jentz, John Eric Rollinger, Brandon M. Dawson | 2013-03-19 |
| 8215291 | Method and system for fuel vapor control | Timothy DeBastos, Russell Randall Pearce, Scott A. Bohr, Patrick Sullivan, Christopher Kragh +6 more | 2012-07-10 |
| 8200411 | Method and system for fuel vapor control | Timothy DeBastos, John Michael Kacewicz, Scott A. Bohr, Russell Randall Pearce, Christopher Kragh +2 more | 2012-06-12 |
| 8099947 | Control and diagnostic approach for emission control device | Imad Hassan Makki, James Michael Kerns, Michael James Uhrich | 2012-01-24 |
| 8079351 | Temperature sensor diagnostics | Michael James Uhrich, Shane Elwart, Gopichandra Surnilla | 2011-12-20 |
| 8056540 | Method and system for fuel vapor control | Timothy DeBastos, Russell Randall Pearce, Scott A. Bohr, Patrick Sullivan, Christopher Kragh +6 more | 2011-11-15 |
| 8019525 | Method and system for fuel vapor control | Timothy DeBastos, John Michael Kacewicz, Scott A. Bohr, Russell Randall Pearce, Christopher Kragh +2 more | 2011-09-13 |
| 7870848 | Reducing fuel-vapor emissions by vortex effect | Shane Elwart, James Michael Kerns | 2011-01-18 |
| 7802563 | Air/fuel imbalance monitor using an oxygen sensor | Ken John Behr, Has R Patel, Bob Roy Jentz | 2010-09-28 |
| 7523653 | Exhaust temperature sensor monitoring | Stephen B. Smith, Shane Elwart, Jason Aaron Lupescu | 2009-04-28 |