F02D 41/148
Using a plurality of comparators
Official title: {Using a plurality of comparators}
F02D41/148 (Using a plurality of comparators) appears on 63 US grants and 15 published applications in this corpus.
Search patents in F02D- Granted patents
- 63
- Published applications
- 15
- Assignees
- 36
- Inventors
- 135
- Latest grant
- 8 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 5 |
| 2003 | 0 | 2 |
| 2004 | 4 | 0 |
| 2005 | 1 | 1 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and systems for engine control8 Feb 2022US 11,242,784 B2Transportation IP Holdings, LLC
- Method and systems for particulate matter control29 Jun 2021US 11,047,277 B2Transportation IP Holdings, LLC
- Internal combustion engine control system18 May 2021US 11,008,961 B2Denso Corporation
- Engine control apparatus19 Dec 2017US 9,845,758 B2Mitsubishi Electric Corporation
- Malfunction-determining device for exhaust gas purifying device and malfunction-determining method for exhaust gas purifying device12 Jul 2016US 9,389,146 B2Komatsu Ltd.
- Method and systems for engine control5 Aug 2021US 2021/0239019 A1Transportation IP Holdings, LLC
- Internal combustion engine control system21 May 2020US 2020/0158036 A1Denso Corporation
- Method and systems for particulate matter control14 Nov 2019US 2019/0345858 A1Ge Global Sourcing LLC
- Engine control apparatus1 Jun 2017US 2017/0152807 A1Mitsubishi Electric Corporation
- Malfunction-Determining Device for Exhaust Gas Purifying Device and Malfunction-Determining Method for Exhaust Gas Purifying Device27 Aug 2015US 2015/0240696 A1Komatsu Ltd.
Most cited
By later US patents
- Apparatus for controlling engine operable on gasoline/alcohol fuel blend64US 4,967,714 ANissan Motor Co., Ltd. · 1990
- Exhaust gas sensor operating temperature detection system33US 3,938,479 AThe Bendix Corporation · 1976
- Air-fuel ratio controller33US 4,364,364 ACooper Industries, Inc. · 1982
- Method of controlling the air-fuel ratio in an internal combustion engine31US 4,492,205 A1985
- Air-fuel ratio regulating apparatus for an internal combustion engine with exhaust gas sensor characteristic compensation26US 4,019,474 AHitachi, Ltd. · 1977