F01N 3/0253
Adding fuel to exhaust gases
Official title: {adding fuel to exhaust gases}
F01N3/0253 (Adding fuel to exhaust gases) appears on 738 US grants and 900 published applications in this corpus.
Search patents in F01N- Granted patents
- 738
- Published applications
- 900
- Assignees
- 241
- Inventors
- 1,639
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 5 |
| 2002 | 2 | 4 |
| 2003 | 5 | 14 |
| 2004 | 7 | 20 |
| 2005 | 13 | 43 |
| 2006 | 24 | 38 |
| 2007 | 18 | 53 |
| 2008 | 20 | 70 |
| 2009 | 24 | 69 |
| 2010 | 35 | 84 |
| 2011 | 43 | 61 |
| 2012 | 58 | 42 |
| 2013 | 53 | 75 |
| 2014 | 48 | 33 |
| 2015 | 48 | 52 |
| 2016 | 45 | 41 |
| 2017 | 52 | 23 |
| 2018 | 17 | 23 |
| 2019 | 33 | 38 |
| 2020 | 21 | 20 |
| 2021 | 25 | 18 |
| 2022 | 17 | 25 |
| 2023 | 24 | 16 |
| 2024 | 21 | 15 |
| 2025 | 9 | 13 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Burner for an exhaust-gas aftertreatment system, exhaust-gas aftertreatment system for an internal combustion engine11 Aug 2026US 12,704,085 B2Robert Bosch GmbH
- Internal combustion engine control device23 Jun 2026US 12,662,954 B2Toyota Jidosha Kabushiki Kaisha
- Rapid exhaust catalyst heating using a glow plug26 May 2026US 12,637,968 B2Fca US LLC
- Low resistance exhaust system with correction module for regeneration control5 May 2026US 12,618,353 B1
- Model predictive control for aftertreatment regeneration3 Feb 2026US 12,540,570 B2Caterpillar Inc.
- Rapid exhaust catalyst heating using a glow plug27 Aug 2026US 2026/0251081 A1Saudi Arabian Oil Company
- Hydrogen combustion engine arrangement and method of operating a hydrogen combustion engine arrangement14 May 2026US 2026/0132749 A1Volvo Truck Corporation
- Internal combustion engine control device2 Apr 2026US 2026/0092546 A1Toyota Jidosha Kabushiki Kaisha
- Systems and methods for controlling tailpipe exhaust emissions26 Feb 2026US 2026/0055719 A1Cummins Inc.
- Method for Introducing Heat into at Least One Component of an Exhaust-Gas Aftertreatment Device, Software and Open-Loop or Closed-Loop Control Device29 Jan 2026US 2026/0028927 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
Most cited
By later US patents
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- Method and apparatus for emission control148US 6,314,722 B1Matros Technologies, Inc. · 2001
- Static mixer and exhaust gas treatment device100US 7,793,494 B2J. Eberspaecher GmbH & Co. KG · 2010
- Exhaust gas aftertreatment systems96US 6,928,806 B2Ford Global Technologies, LLC · 2005
- System and methods for improved emission control of internal combustion engines using pulsed fuel flow93US 7,082,753 B2Catalytica Energy Systems, Inc. · 2006