F02D 41/1496
Measurement of the conductivity of a sensor
Official title: {Measurement of the conductivity of a sensor (F02D41/1455 takes precedence)}
F02D41/1496 (Measurement of the conductivity of a sensor) appears on 59 US grants and 31 published applications in this corpus.
Search patents in F02D- Granted patents
- 59
- Published applications
- 31
- Assignees
- 34
- Inventors
- 121
- Latest grant
- 12 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 5 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 6 |
| 2004 | 6 | 4 |
| 2005 | 5 | 1 |
| 2006 | 3 | 3 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 3 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 3 |
| 2021 | 3 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Controller for air-fuel ratio sensor, and program for detecting failure of air-fuel ratio sensor12 Jul 2022US 11,384,703 B2Denso Wave Incorporated
- Control system of internal combustion engine17 Aug 2021US 11,092,100 B2Toyota Jidosha Kabushiki Kaisha
- Oxygen sensor out of specification heater rationality monitor using cold start cycle3 Aug 2021US 11,078,859 B2Fca US LLC
- Fuel type prediction from mass flow measurements and thermal conductivity sensor29 Jun 2021US 11,047,320 B2Cummins Inc.
- Fuel type prediction from mass flow measurements and thermal conductivity sensor2 Jun 2020US 10,669,956 B2Cummins Inc.
- Air-fuel ratio calculation device15 May 2025US 2025/0155323 A1Toyota Jidosha Kabushiki Kaisha
- System and method for identifying the condition of fluids inside a container5 Aug 2021US 2021/0239746 A1
- Oxygen sensor out of specification heater rationality monitor using cold start cycle15 Apr 2021US 2021/0108587 A1Fca US LLC
- Fuel type prediction from mass flow measurements and thermal conductivity sensor8 Oct 2020US 2020/0318562 A1Cummins Inc.
- Control system of internal combustion engine23 Jul 2020US 2020/0232407 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Emission control system with catalyst warm-up speeding control57US 6,898,927 B2Denso Corporation · 2005
- Method and apparatus for controlling heater of a gas sensor38US 4,708,777 ANippondenso Co., Ltd. · 1987
- Exhaust gas sensor operating temperature detection system33US 3,938,479 AThe Bendix Corporation · 1976
- Method for accurately detecting sensor element resistance32US 6,084,418 ADenso Corporation · 2000
- Method and system for recognizing the readiness for operation of an oxygen measurement sensor28US 4,742,808 AVDO Adolf Schindling AG · 1988