F01N 3/2073
Means for generating a reducing substance from the exhaust gases
Official title: {Means for generating a reducing substance from the exhaust gases}
F01N3/2073 (Means for generating a reducing substance from the exhaust gases) appears on 261 US grants and 333 published applications in this corpus.
Search patents in F01N- Granted patents
- 261
- Published applications
- 333
- Assignees
- 103
- Inventors
- 668
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 1 | 8 |
| 2006 | 2 | 5 |
| 2007 | 3 | 25 |
| 2008 | 3 | 14 |
| 2009 | 9 | 16 |
| 2010 | 6 | 28 |
| 2011 | 8 | 18 |
| 2012 | 13 | 12 |
| 2013 | 20 | 21 |
| 2014 | 19 | 15 |
| 2015 | 13 | 11 |
| 2016 | 14 | 24 |
| 2017 | 22 | 25 |
| 2018 | 18 | 22 |
| 2019 | 27 | 18 |
| 2020 | 16 | 20 |
| 2021 | 16 | 13 |
| 2022 | 17 | 12 |
| 2023 | 9 | 9 |
| 2024 | 10 | 4 |
| 2025 | 6 | 7 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Performance enhancement of a platinum-containing catalyst via exhaust gas hydrogen enrichment16 Jun 2026US 12,654,160 B2BASF Mobile Emissions Catalysts LLC
- Diesel exhaust fluid with additive10 Mar 2026US 12,571,335 B2Jsip, LLC
- Reductant delivery system for exhaust gas aftertreatment system23 Dec 2025US 12,503,969 B2Cummins Emission Solutions Inc.
- Composition for SCR catalysts4 Nov 2025US 12,458,958 B2BASF Mobile Emissions Catalysts LLC
- Method for controlling at least a part of an exhaust after treatment system of a vehicle1 Jul 2025US 12,345,192 B2Volvo Truck Corporation
- Ammonia slip mitigation systems and methods30 Jul 2026US 2026/0217576 A1CPV Power Holdings, LP
- Exhaust treatment device7 May 2026US 2026/0125998 A1Isuzu Motors Limited
- Reductant delivery system for exhaust gas aftertreatment system12 Mar 2026US 2026/0071567 A1Cummins Emission Solutions Inc.
- Enhanced operation of hydrogen and ammonia engines11 Dec 2025US 2025/0376937 A1
- Doser assembly with sensor assembly4 Dec 2025US 2025/0369383 A1Cummins Emission Solutions Inc.
Most cited
By later US patents
- Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines116US 7,062,904 B1Eaton Corporation · 2006
- Narrow speed range diesel-powered engine system w/ aftertreatment devices90US 7,063,642 B1Eaton Corporation · 2006
- NOx aftertreatment system and method for internal combustion engines83US 6,732,507 B1Southwest Research Institute · 2004
- Method and device for purifying exhaust gas of engine71US 6,047,542 AToyota Jidosha Kabushiki Kaisha · 2000
- Internal combustion engine with SCR and integrated ammonia production68US 6,739,125 B1Collier Technologies, Inc. · 2004