F01N 2570/18
Ammonia
F01N2570/18 (Ammonia) appears on 269 US grants and 340 published applications in this corpus.
Search patents in F01N- Granted patents
- 269
- Published applications
- 340
- Assignees
- 113
- Inventors
- 733
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 6 |
| 2003 | 2 | 4 |
| 2004 | 6 | 9 |
| 2005 | 4 | 16 |
| 2006 | 7 | 6 |
| 2007 | 6 | 20 |
| 2008 | 4 | 11 |
| 2009 | 4 | 13 |
| 2010 | 6 | 19 |
| 2011 | 4 | 11 |
| 2012 | 15 | 9 |
| 2013 | 11 | 15 |
| 2014 | 13 | 18 |
| 2015 | 14 | 30 |
| 2016 | 29 | 31 |
| 2017 | 19 | 14 |
| 2018 | 16 | 19 |
| 2019 | 14 | 15 |
| 2020 | 14 | 14 |
| 2021 | 14 | 9 |
| 2022 | 14 | 12 |
| 2023 | 10 | 17 |
| 2024 | 11 | 9 |
| 2025 | 12 | 7 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust gas purification apparatus1 Sep 2026US 12,723,529 B2Isuzu Motors Limited
- Exhaust system25 Aug 2026US 12,715,567 B2Yanmar Holdings Co., Ltd.
- Emission treatment catalysts, systems and methods26 May 2026US 12,636,613 B2BASF Mobile Emissions Catalysts LLC
- Engine system comprising a hydrogen combustion engine10 Mar 2026US 12,571,338 B2Volvo Truck Corporation
- Method for controlling the operation of a hydrogen combustion engine system3 Feb 2026US 12,540,568 B2Volvo Truck Corporation
- Ammonia oxidation catalyst with zoned scr inlet and pgm outlet for gasoline applications23 Jul 2026US 2026/0208105 A1BASF SE
- Exhaust treatment system, method for treatment of an exhaust stream and control system therefore23 Jul 2026US 2026/0210278 A1Scania CV AB
- System and method for treatment of an exhaust stream and control system therefor23 Jul 2026US 2026/0210279 A1Scania CV AB
- Exhuast Gas Purification Catalyst16 Jul 2026US 2026/0199887 A1Cataler Corporation
- Aftertreatment system, dual fuel system, and methods therefor30 Apr 2026US 2026/0117688 A1Cummins Power Generation Inc.
Most cited
By later US patents
- Staged reductant injection for improved NO.sub.x reduction157US 6,125,629 AEngelhard Corporation · 2000
- Method and apparatus for controlled introduction of a reducing agent into a nitrogen oxide-containing exhaust gas153US 5,628,186 ASiemens Aktiengesellschaft · 1997
- Control system for mobile NOx SCR applications125US 6,415,602 B1Engelhard Corporation · 2002
- Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines116US 7,062,904 B1Eaton Corporation · 2006
- Method for determining catalyst cool down temperature106US 6,742,330 B2Engelhard Corporation · 2004