F01N 2430/00
Influencing exhaust purification
Official title: Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
F01N2430/00 (Influencing exhaust purification) appears on 1,427 US grants and 1,362 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,427
- Published applications
- 1,362
- Assignees
- 279
- Inventors
- 2,682
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 11 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 16 | 0 |
| 1997 | 11 | 0 |
| 1998 | 16 | 0 |
| 1999 | 28 | 0 |
| 2000 | 22 | 0 |
| 2001 | 20 | 5 |
| 2002 | 23 | 13 |
| 2003 | 23 | 57 |
| 2004 | 35 | 95 |
| 2005 | 53 | 71 |
| 2006 | 67 | 57 |
| 2007 | 47 | 49 |
| 2008 | 28 | 49 |
| 2009 | 33 | 37 |
| 2010 | 36 | 31 |
| 2011 | 25 | 34 |
| 2012 | 25 | 37 |
| 2013 | 32 | 37 |
| 2014 | 39 | 37 |
| 2015 | 39 | 60 |
| 2016 | 52 | 73 |
| 2017 | 68 | 82 |
| 2018 | 67 | 100 |
| 2019 | 106 | 98 |
| 2020 | 95 | 107 |
| 2021 | 106 | 64 |
| 2022 | 78 | 60 |
| 2023 | 67 | 52 |
| 2024 | 50 | 24 |
| 2025 | 25 | 17 |
| 2026 | 13 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2430/06Influencing exhaust purification: by varying fuel-air ratioIndexing code738
- F01N 2430/08Influencing exhaust purification: by modifying ignition or injection timingIndexing code380
- F01N 2430/02Influencing exhaust purification: by cutting out a part of engine cylindersIndexing code153
- F01N 2430/10Influencing exhaust purification: by modifying inlet or exhaust valve timingIndexing code103
- F01N 2430/04Influencing exhaust purification: by adding non-fuel substances to combustion air or fuelIndexing code101
Recent patents
- Estimation method for determining the oxygen storage capacity of a catalytic converter22 Sep 2026US 12,742,408 B2Ferrari S.P. A.
- Internal combustion engine system15 Sep 2026US 12,736,016 B2Toyota Jidosha Kabushiki Kaisha
- Method for operating an exhaust gas post-treatment device for an internal combustion engine of a motor vehicle, in particular of a motor car25 Aug 2026US 12,716,376 B2Mercedes-Benz Group AG
- Control device for internal combustion engine25 Aug 2026US 12,716,393 B2Toyota Jidosha Kabushiki Kaisha
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- Diesel oxidation deposit mitigation9 Jul 2026US 2026/0193998 A1Thermo King Corporation
- System and method for adaptive control of ammonia-nox ratio18 Jun 2026US 2026/0168418 A1Caterpillar Inc.
- System and method for adaptive control of air-to-fuel ratio18 Jun 2026US 2026/0168452 A1Caterpillar Inc.
- Engine exhaust gas purification apparatus11 Jun 2026US 2026/0160193 A1Mazda Motor Corporation
- Engine exhaust gas purification apparatus11 Jun 2026US 2026/0160213 A1Mazda Motor Corporation
Most cited
By later US patents
- Exhaust purification device of internal combustion engine199US 5,473,887 AToyota Jidosha Kabushiki Kaisha · 1995
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Apparatus and method for internal combustion engine control173US 5,657,625 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Engine with cylinder deactivation168US 6,023,929 AFord Global Technologies, LLC · 2000
- Exhaust gas purification apparatus for an internal combustion engine149US 5,402,641 AToyota Jidosha Kabushiki Kaisha · 1995