F01N 2240/25
An ammonia generator
Official title: an ammonia generator
F01N2240/25 (An ammonia generator) appears on 158 US grants and 187 published applications in this corpus.
Search patents in F01N- Granted patents
- 158
- Published applications
- 187
- Assignees
- 78
- Inventors
- 421
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 4 | 8 |
| 2005 | 3 | 11 |
| 2006 | 2 | 10 |
| 2007 | 9 | 29 |
| 2008 | 8 | 16 |
| 2009 | 11 | 8 |
| 2010 | 12 | 17 |
| 2011 | 4 | 8 |
| 2012 | 13 | 3 |
| 2013 | 6 | 2 |
| 2014 | 7 | 12 |
| 2015 | 4 | 5 |
| 2016 | 10 | 11 |
| 2017 | 10 | 5 |
| 2018 | 3 | 9 |
| 2019 | 7 | 5 |
| 2020 | 7 | 10 |
| 2021 | 9 | 5 |
| 2022 | 3 | 3 |
| 2023 | 4 | 0 |
| 2024 | 2 | 2 |
| 2025 | 3 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dosing module for use in aftertreatment systems for internal combustion engines4 Nov 2025US 12,460,566 B2Cummins Emission Solutions Inc.
- Device and method for exhaust gas post treatment and use thereof1 Jul 2025US 12,345,191 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Exhaust gas purification apparatus and exhaust gas purification method4 Feb 2025US 12,215,617 B2Kabushiki Kaisha Toyota Jidoshokki
- Dosing module for use in aftertreatment systems for internal combustion engines13 Aug 2024US 12,060,822 B2Cummins Emission Solutions Inc.
- Systems and methods for the on-board catalytic production of hydrogen from ammonia using a heat exchange catalyst unit and an electric catalyst unit operating in series14 May 2024US 11,981,562 B2First Ammonia Motors, Inc.
- Exhaust treatment device7 May 2026US 2026/0125998 A1Isuzu Motors Limited
- Ammonia gasifier for a selective catalytic reduction device, and associated systems and methods7 May 2026US 2026/0125999 A1Safety Power Inc.
- Engine device18 Sep 2025US 2025/0290460 A1Yanmar Holdings Co., Ltd.
- Exhaust gas purification apparatus and exhaust gas purification method2 Jan 2025US 2025/0003361 A1Kabushiki Kaisha Toyota Jidoshokki
- Dosing module for use in aftertreatment systems for internal combustion engines31 Oct 2024US 2024/0360780 A1Cummins Emission Solutions Inc.
Most cited
By later US patents
- Reducing NO.sub.x emissions from an engine by selective catalytic reduction utilizing solid reagents116US 5,809,775 AClean Diesel Technologies, Inc. · 1998
- Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines116US 7,062,904 B1Eaton Corporation · 2006
- Exhaust gas purification device for an engine92US 5,746,052 AToyota Jidosha Kabushiki Kaisha · 1998
- NOx aftertreatment system and method for internal combustion engines83US 6,732,507 B1Southwest Research Institute · 2004
- Catalyst system for the reduction of NOx and NH3 emissions81US 7,332,135 B2Ford Global Technologies, LLC · 2008