F02D 41/1455
With sensor resistivity varying with oxygen concentration
Official title: {with sensor resistivity varying with oxygen concentration (F02D41/1456 takes precedence)}
F02D41/1455 (With sensor resistivity varying with oxygen concentration) appears on 126 US grants and 86 published applications in this corpus.
Search patents in F02D- Granted patents
- 126
- Published applications
- 86
- Assignees
- 45
- Inventors
- 259
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 4 |
| 2003 | 3 | 5 |
| 2004 | 4 | 8 |
| 2005 | 3 | 2 |
| 2006 | 7 | 5 |
| 2007 | 4 | 3 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 2 | 5 |
| 2011 | 2 | 1 |
| 2012 | 0 | 5 |
| 2013 | 4 | 9 |
| 2014 | 7 | 5 |
| 2015 | 6 | 4 |
| 2016 | 6 | 3 |
| 2017 | 4 | 5 |
| 2018 | 7 | 2 |
| 2019 | 3 | 5 |
| 2020 | 5 | 4 |
| 2021 | 3 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for diagnosing an exhaust gas sensor4 Feb 2025US 12,216,180 B2Vitesco Technologies GmbH
- Device and method for determining an offset in a signal of a sensor for measuring residual oxygen28 Jan 2025US 12,209,519 B2Robert Bosch GmbH
- Method, computing unit, and computer program for operating an internal-combustion engine23 Jan 2024US 11,879,406 B2Robert Bosch GmbH
- Methods and system for controlling selective catalytic reductant catalyst of a gasoline engine14 Mar 2023US 11,603,787 B2Ford Global Technologies, LLC
- Oxygen sensor adaptive impedance control26 Apr 2022US 11,313,303 B1Ford Global Technologies, LLC
- Device and method for determining an offset in a signal of a sensor for measuring residual oxygen26 Oct 2023US 2023/0340900 A1Robert Bosch GmbH
- Verfahren, Recheneinheit und Computerprogramm zum Betreiben einer Brennkraftmaschine17 Aug 2023US 2023/0258140 A1Robert Bosch GmbH
- Methods and system for controlling selective catalytic reductant catalyst of a gasoline engine2 Jun 2022US 2022/0170400 A1Ford Global Technologies, LLC
- Method and apparatus for diagnosing an exhaust gas sensor11 Nov 2021US 2021/0348575 A1Vitesco Technologies GmbH
- Systems and methods for preventing thermal spikes at exhaust gas catalysts25 Jun 2020US 2020/0200109 A1
Most cited
By later US patents
- Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas internal combustion engine51US 6,161,378 AHitachi, Ltd. · 2000
- Heated titania oxygen sensor50US 4,535,316 AAllied Corporation · 1985
- Auto-calibration method for a wide range exhaust gas oxygen sensor40US 6,227,033 B1Delphi Technologies, Inc. · 2001
- Oxygen concentration detecting apparatus38US 5,709,198 ANippondenso Co., Ltd. · 1998
- Engine control system33US 4,942,860 AToyota Jidosha Kabushiki Kaisha · 1990