Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7481915 | Exhaust gas temperature measurement utilizing an exhaust gas sensor | Christopher Kirk Davey, David Robert Nader, Kenneth John Behr, Michael James Uhrich, Robert Joseph Jerger | 2009-01-27 |
| 6945222 | Determining degradation of an idle air throttling device | Margherita Zanini-Fisher | 2005-09-20 |
| 6804951 | On-board diagnostic catalyst monitoring system | David Robert Nader, Robert Eloy Gonzales, Robert Joseph Jerger, Ziad Zaghati | 2004-10-19 |
| 6684869 | System and method for detecting an air leak in an engine | Edward Ponagai, Gary Lee Danhoff, Ghassan Hussini, Ghassan K. Raad, Raymond Henry Berger +1 more | 2004-02-03 |
| 6644097 | Method and apparatus for inferring fuel mixture | Christopher Kirk Davey, David Robert Nader, Jeffrey Scott Hepburn, Robert Joseph Jerger | 2003-11-11 |
| 6568246 | System and method for detecting an air leak in an exhaust system coupled to an engine | Edward Ponagai, Gary Lee Danhoff, Ghassan Hussini, Ghassan K. Raad, Raymond Henry Berger +1 more | 2003-05-27 |
| 6532734 | On-board diagnostic catalyst monitoring system | David Robert Nader, Michael Daniel Shane, Michael James Uhrich, Robert Joseph Jerger | 2003-03-18 |
| 6401452 | Catalytic monitoring method | Christopher Kirk Davey, Robert Joseph Jerger, David Robert Nader | 2002-06-11 |
| 6397583 | Method for catalyst monitoring using flex fuel | Christopher Kirk Davey, David Robert Nader, Paul Raymond Willette, Robert Joseph Jerger | 2002-06-04 |
| 6378359 | Method and system for evaluating exhaust on-board diagnostics system | Douglas Allen Dobson, Jeffrey Scott Hepburn, Robert Joseph Jerger, Timothy Brian Chanko, William L. H. Watkins | 2002-04-30 |
| 6195986 | Method and system for monitoring a catalytic converter | Christopher Kirk Davey, David Robert Nader, Robert Joseph Jerger | 2001-03-06 |
| 6151889 | Catalytic monitoring method | Christopher Kirk Davey, Robert Joseph Jerger, David Robert Nader | 2000-11-28 |
| 6138452 | Catalytic monitoring method | Christopher Kirk Davey, Robert Roy Jentz, Robert Joseph Jerger | 2000-10-31 |
| 6112518 | System and method for monitoring a catalytic converter | Robert Joseph Jerger, Christopher Kirk Davey, Donald Fenwick Dickison | 2000-09-05 |
| 5974786 | Adaptive time window to synchronize pre- and post-catalyst oxygen sensor switch counters | Christopher Kirk Davey, David Robert Nader, Robert Joseph Jerger | 1999-11-02 |
| 5953905 | System and method for monitoring a catalytic converter | Robert Joseph Jerger, Christopher Kirk Davey, Donald Fenwick Dickison | 1999-09-21 |
| 5899062 | Catalyst monitor using arc length ratio of pre- and post-catalyst sensor signals | Robert Joseph Jerger, Christopher Kirk Davey, David Robert Nader | 1999-05-04 |
| 5801295 | On-board diagnostic test of oxygen sensor | Christopher Kirk Davey, Anand J. Shah, Donald Fenwick Dickison, David Robert Nader, Robert Joseph Jerger | 1998-09-01 |
| 5763769 | Fiber optic misfire, knock and LPP detector for internal combustion engines | — | 1998-06-09 |