F02D 41/1459
The characteristics being a hydrocarbon content or concentration
Official title: {the characteristics being a hydrocarbon content or concentration}
F02D41/1459 (The characteristics being a hydrocarbon content or concentration) appears on 100 US grants and 103 published applications in this corpus.
Search patents in F02D- Granted patents
- 100
- Published applications
- 103
- Assignees
- 57
- Inventors
- 288
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 4 | 4 |
| 2004 | 1 | 4 |
| 2005 | 3 | 2 |
| 2006 | 3 | 2 |
| 2007 | 2 | 2 |
| 2008 | 2 | 3 |
| 2009 | 1 | 0 |
| 2010 | 0 | 6 |
| 2011 | 2 | 8 |
| 2012 | 2 | 5 |
| 2013 | 8 | 4 |
| 2014 | 6 | 7 |
| 2015 | 2 | 8 |
| 2016 | 5 | 11 |
| 2017 | 3 | 3 |
| 2018 | 10 | 5 |
| 2019 | 7 | 9 |
| 2020 | 10 | 7 |
| 2021 | 7 | 3 |
| 2022 | 2 | 3 |
| 2023 | 6 | 2 |
| 2024 | 2 | 3 |
| 2025 | 0 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Hydrocarbon deposition amount estimation device, hydrocarbon deposition amount estimation method, control device, and exhaust gas purification system17 Feb 2026US 12,553,370 B2Komatsu Ltd.
- Air-fuel ratio control apparatus for internal combustion engine and air-fuel ratio control method therefor17 Sep 2024US 12,092,051 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for the same5 Mar 2024US 11,920,532 B2Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine control device5 Sep 2023US 11,746,719 B2Hitachi Astemo, Ltd.
- Exhaust monitoring apparatus6 Aug 2026US 2026/0226858 A1Toyota Jidosha Kabushiki Kaisha
- Camless reciprocating engine control system20 Feb 2025US 2025/0059925 A1Adaptive Camless Technology, LLC
- Air-fuel ratio control apparatus for internal combustion engine and air-fuel ratio control method therefor6 Jun 2024US 2024/0183323 A1Toyota Jidosha Kabushiki Kaisha
- Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for the same18 Jan 2024US 2024/0018918 A1Toyota Jidosha Kabushiki Kaisha
- Powertrain Control to Optimize CO2 and Criteria Pollutants4 Jan 2024US 2024/0003309 A1
Most cited
By later US patents
- Catalytic converter function detection59US 6,857,262 B2SPX Corporation · 2005
- Method and apparatus for controlling a gas-emitting process and related devices44US 7,231,290 B2E. I. Du Pont de Nemours and Company · 2007
- Fuel alcohol content detection via an exhaust gas sensor41US 8,522,760 B2Ford Global Technologies, LLC · 2013
- Apparatus for controlling exhaust concentration38US 5,357,749 AHitachi, Ltd. · 1994
- Parametric emissions monitoring system having operating condition deviation feedback37US 5,703,777 AANR Pipeline Company · 1997