Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5392599 | Engine air/fuel control with adaptive correction of ego sensor output | Eleftherios M. Logothetis | 1995-02-28 |
| 5383333 | Method for biasing a hego sensor in a feedback control system | Eleftherios M. Logothetis, Jeffrey A. Cook, Lajos Rimai | 1995-01-24 |
| 5379590 | Air/fuel control system with hego current pumping | Eleftherios M. Logothetis, Jeffrey A. Cook, Lajos Rimai | 1995-01-10 |
| 5375415 | Adaptive control of EGO sensor output | Eleftherios M. Logothetis | 1994-12-27 |
| 5370101 | Fuel controller with oxygen sensor monitoring and offset correction | Nicholas G. Zorka | 1994-12-06 |
| 5365216 | Catalyst monitoring using ego sensors | Allan Joseph Kotwicki | 1994-11-15 |
| 5363091 | Catalyst monitoring using ego sensors | Allan Joseph Kotwicki | 1994-11-08 |
| 5359852 | Air fuel ratio feedback control | Judith M. Curran, Thomas Raymond Culbertson | 1994-11-01 |
| 5341643 | Feedback control system | Eleftherios M. Logothetis, Richard E. Soltis, Jacobus Hendrik Visser | 1994-08-30 |
| 5329764 | Air/fuel feedback control system | Jeffrey A. Cook, Eleftherios M. Logothetis | 1994-07-19 |
| 5325711 | Air-fuel modulation for oxygen sensor monitoring | Thomas Scott Gee, Thomas Schubert, Paul F. Smith | 1994-07-05 |
| 5313791 | Method for detecting catalyst malfunctions | Jeffrey A. Cook | 1994-05-24 |
| 5291673 | Oxygen sensor system with signal correction | Jeffrey A. Cook, Wayne J. Johnson, Louis J. Sherry | 1994-03-08 |
| 5282360 | Post-catalyst feedback control | Thomas Raymond Culbertson, Judith M. Curran | 1994-02-01 |
| 5268086 | Catalyst monitoring using ego sensors | Eleftherios M. Logothetis, Jacobus Hendrik Visser, Richard E. Soltis | 1993-12-07 |
| 5265416 | On-board catalytic converter efficiency monitoring | Kelvin Lee Dobbins | 1993-11-30 |
| 5265417 | Method and apparatus for determining the hydrocarbon conversion efficiency of a catalytic converter | Jacobus Hendrik Visser, Richard E. Soltis, Eleftherios M. Logothetis, Jeffrey A. Cook, Margherita Zanini-Fisher | 1993-11-30 |
| 5255512 | Air fuel ratio feedback control | Thomas Raymond Culbertson, Judith M. Curran | 1993-10-26 |
| 5177464 | Catalyst monitoring using a hydrocarbon sensor | — | 1993-01-05 |
| 5099647 | Combined engine air/fuel control and catalyst monitoring | — | 1992-03-31 |
| 5090388 | Air/fuel ratio control with adaptive learning of purged fuel vapors | Martin F. Davenport | 1992-02-25 |
| 5080078 | Fuel vapor recovery control system | — | 1992-01-14 |
| 5077970 | Method of on-board detection of automotive catalyst degradation | — | 1992-01-07 |
| 5067469 | Fuel vapor recovery system and method | — | 1991-11-26 |
| 5060621 | Vapor purge control system | Jeffrey A. Cook | 1991-10-29 |