F01N 2250/04
Afterburning and catalytic conversion
Official title: afterburning and catalytic conversion
F01N2250/04 (Afterburning and catalytic conversion) appears on 55 US grants and 28 published applications in this corpus.
Search patents in F01N- Granted patents
- 55
- Published applications
- 28
- Assignees
- 33
- Inventors
- 125
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 3 |
| 2023 | 4 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for reducing emissions21 Apr 2026US 12,607,153 B2General Electric Company
- Motor vehicle provided with an after-treatment apparatus and a device for heating the after-treatment apparatus6 Jan 2026US 12,516,617 B2Ferrari S.P. A.
- Engine aftertreatment system20 Feb 2024US 11,905,873 B1Caterpillar Inc.
- Exhaust gas aftertreatment system and method for exhaust gas aftertreatment in an internal combustion engine11 Jul 2023US 11,698,009 B2Volkswagen Aktiengesellschaft
- Method to control a burner for an exhaust system of an internal combustion engine27 Jun 2023US 11,686,233 B2Marelli Europe S.P.A.
- Motor vehicle provided with an after-treatment apparatus and a device for heating the after-treatment apparatus10 Apr 2025US 2025/0116217 A1Ferrari S.P. A.
- Method To Control A Burner For An Exhaust System Of An Internal Combustion Engine5 Jan 2023US 2023/0003156 A1Marelli Europe S.P.A.
- Exhaust gas aftertreatment6 Oct 2022US 2022/0316383 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Heating Device for an Exhaust System of an Internal Combustion Engine23 Jun 2022US 2022/0195908 A1Marelli Europe S.P.A.
- System for working machine27 Jan 2022US 2022/0025797 A1J. C. Bamford Excavators Limited
Most cited
By later US patents
- Catalytic method88US 5,720,609 A1998
- Catalytic abatement system78US 4,054,418 AE. I. Du Pont de Nemours and Company · 1977
- Torch assembly68US 5,636,511 APrecision Combustion, Inc. · 1997
- Method of decreasing nitrogen oxides in combustion device which performs continuous combustion, and apparatus therefor63US 5,441,401 AAisin Seiki Kabushiki Kaisha · 1995
- Anti-pollution system52US 5,829,248 AEnvironmental Engineering Corp. · 1998