F01N 3/204
Using an exhaust gas igniter
Official title: {using an exhaust gas igniter, e.g. a spark or glow plug, without introducing fuel into exhaust duct}
F01N3/204 (Using an exhaust gas igniter) appears on 45 US grants and 40 published applications in this corpus.
Search patents in F01N- Granted patents
- 45
- Published applications
- 40
- Assignees
- 35
- Inventors
- 112
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 4 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 4 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 2 | 1 |
| 2019 | 3 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 3 |
| 2024 | 7 | 6 |
| 2025 | 4 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rapid exhaust catalyst heating using a glow plug26 May 2026US 12,637,968 B2Fca US LLC
- Method for operating an internal combustion engine, and internal combustion engine16 Sep 2025US 12,416,268 B2Robert Bosch GmbH
- Support unit for supporting a heating conductor of an exhaust gas heater on a carrier structure1 Jul 2025US 12,345,190 B2Purem GmbH
- System for lighting off an auxiliary occupational emissions device and method of operating the same15 Apr 2025US 12,276,218 B2Beecher Emission Solution Technologies, LLC
- Burner for a motor vehicle and motor vehicle having at least one such burner11 Feb 2025US 12,221,914 B2Mercedes-Benz Group AG
- System and method for monitoring a burner associated with an exhaust gas after-treatment apparatus of a vehicle1 Oct 2026US 2026/0298126 A1Ferrari S.P. A.
- Rapid exhaust catalyst heating using a glow plug27 Aug 2026US 2026/0251081 A1Saudi Arabian Oil Company
- Burner for an Exhaust Gas System of an Internal Combustion Engine, in Particular of a Motor Vehicle, and Internal Combustion Engine, in Particular for a Motor Vehicle6 Aug 2026US 2026/0226855 A1Mercedes-Benz Group AG
- Rapid exhaust catalyst heating using a glow plug4 Sep 2025US 2025/0277464 A1Fca US LLC
- Method for operating an internal combustion engine, and internal combustion engine28 Nov 2024US 2024/0392732 A1Robert Bosch GmbH
Most cited
By later US patents
- System comprising duel-fuel and after treatment for heavy-heavy duty diesel (HHDD) engines180US 10,287,943 B1Clean Power Technologies, LLC · 2019
- Engine with cylinder deactivation168US 6,023,929 AFord Global Technologies, LLC · 2000
- Internal combustion engine66US 5,207,058 AToyota Jidosha Kabushiki Kaisha · 1993
- Exhaust gas combustor41US 5,584,178 ASouthwest Research Institute · 1996
- Integrated post-engine emissions heater, catalytic converter and muffler32US 5,285,640 A1994