Issued Patents All Time
Showing 126–150 of 156 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5704339 | method and apparatus for improving vehicle fuel economy | Carole Marie Choe, Robert Matthew Marzonie | 1998-01-06 |
| 5678526 | System and diagnostic method for providing internal combustion engine with oxygen enriched air | John William Hoard | 1997-10-21 |
| 5669347 | Intake system for an internal combustion engine | Bruce Allen Meek, Kevin Joseph Rzemien | 1997-09-23 |
| 5633796 | Method and apparatus for inferring engine oil temperature for use with an oil change indicator | Stephen B. Zulczyk | 1997-05-27 |
| 5628299 | Air/fuel control system with lost fuel compensation | Robert M. Marzonia, Jon Dixon | 1997-05-13 |
| 5617836 | Engine control system for producing and responding to an index of maturity of adaptive learing | Robert Matthew Marzonie, Alan Robert Dona, Eric J. Grant, Ronald A Yannone, Jr. | 1997-04-08 |
| 5609126 | Variable camshaft timing system with altitude compensation | Alan Robert Dona, Eric L. Clinton, Larry Allen Hardy | 1997-03-11 |
| 5605040 | Inferring temperature of a heated exhaust gas oxygen sensor | Paul F. Smith, Thomas Scott Gee | 1997-02-25 |
| 5600947 | Method and system for estimating and controlling electrically heated catalyst temperature | — | 1997-02-11 |
| 5579738 | Returnless fuel system | Florian Frischmuth | 1996-12-03 |
| 5566546 | Method of inferring soak times for an electronic engine control system | Todd Anthony Rumpsa | 1996-10-22 |
| 5540202 | Ignition timing control system for varying cold start spark advance during adaptive learning | Robert Matthew Marzonie, Alan Robert Dona, Eric. J. Grant, Ronald A Yannone, Jr., Patrick J. Eggers | 1996-07-30 |
| 5515832 | Method of controlling internal combustion engine exhaust hydrocarbons | David Karl Bidner | 1996-05-14 |
| 5515833 | Exhaust gas recirculation system with improved altitude compensation | Richard L. Wanat, Joseph Norman Ulrey | 1996-05-14 |
| 5497655 | Controlling resistance heaters on exhaust gas oxygen sensors | Thomas Scott Gee, Paul F. Smith | 1996-03-12 |
| 5497745 | Engine control for enhanced catalyst warm up while maintaining manifold vacuum | Alan Robert Dona | 1996-03-12 |
| 5492094 | Engine control system for maintaining idle speed | Daniel Lawrence Meyer, Alan Robert Dona, Jing Sun | 1996-02-20 |
| 5483941 | Method and apparatus for maintaining temperatures during engine fuel cutoff modes | Robert Matthew Marzonie, Joseph Norman Ulrey, Richard W. Sbaschnig, Michael A. Weyburne, Paul Charles Mingo | 1996-01-16 |
| 5479898 | Method and apparatus for controlling engine torque | Louis R. Christensen, Peter John Grutter, Michael A. Weyburne, Joseph Norman Ulrey, David George Farmer | 1996-01-02 |
| 5445127 | Method and system for reducing engine spark knock during a rapid transient | Joseph Norman Ulrey, Michael R. Giangrande, Patrick J. Eggers | 1995-08-29 |
| 5414994 | Method and apparatus to limit a midbed temperature of a catalytic converter | Woodrow Lewis, Jr., Michael A. Weyburne, Stephen De La Salle, Todd Martin | 1995-05-16 |
| 5384707 | Diagnostic airflow measurement | James Michael Kerns, Michael Stephen Sweppy | 1995-01-24 |
| 5383432 | Method and apparatus for controlling ignition timing based on fuel-air composition during fuel excursions | Thomas Scott Gee, Thomas Schubert, Ross Dykstra Pursifull, Allan Joseph Kotwicki | 1995-01-24 |
| 5331936 | Method and apparatus for inferring the actual air charge in an internal combustion engine during transient conditions | Isis A. Messih, Lawrence H. Buch | 1994-07-26 |
| 5303168 | Engine operation to estimate and control exhaust catalytic converter temperature | James Matthew Kindree, Richard L. Wanat | 1994-04-12 |