F01N 2900/1806
Properties of reducing agent or dosing system
F01N2900/1806 (Properties of reducing agent or dosing system) appears on 890 US grants and 1,032 published applications in this corpus.
Search patents in F01N- Granted patents
- 890
- Published applications
- 1,032
- Assignees
- 249
- Inventors
- 1,786
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 4 |
| 2003 | 4 | 3 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 2 | 8 |
| 2007 | 1 | 25 |
| 2008 | 5 | 24 |
| 2009 | 7 | 34 |
| 2010 | 17 | 47 |
| 2011 | 26 | 33 |
| 2012 | 26 | 39 |
| 2013 | 35 | 81 |
| 2014 | 42 | 65 |
| 2015 | 71 | 88 |
| 2016 | 60 | 61 |
| 2017 | 80 | 69 |
| 2018 | 61 | 84 |
| 2019 | 85 | 83 |
| 2020 | 84 | 69 |
| 2021 | 70 | 47 |
| 2022 | 48 | 47 |
| 2023 | 54 | 51 |
| 2024 | 49 | 27 |
| 2025 | 37 | 26 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2900/1808PressureIndexing code241
- F01N 2900/1811TemperatureIndexing code241
- F01N 2900/1814Tank levelIndexing code213
- F01N 2900/1812Flow rateIndexing code209
- F01N 2900/1818Concentration of the reducing agentIndexing code143
- F01N 2900/1821Injector parametersIndexing code126
- F01N 2900/1822Pump parametersIndexing code76
- F01N 2900/1824Properties of the air to be mixed with added substancesIndexing code26
Recent patents
- Emissions management for diesel series hybrid powertrains25 Aug 2026US 12,715,426 B2Cummins Inc.
- Exhaust aftertreatment system16 Jun 2026US 12,655,784 B2DAF Trucks N. V.
- Nitrogen oxides reduction agent injection arrangement19 May 2026US 12,631,135 B2Volvo Truck Corporation
- Conditioning system for a urea solution24 Mar 2026US 12,584,431 B2Errecinque S.R.L.
- Exhaust gas treatment system and method10 Feb 2026US 12,544,716 B2SodaFlexx Distribution LLP
- Pressurized systems and methods for providing a nebulized catalyst8 Oct 2026US 2026/0309066 A1Jake Vernon LLC
- Containerized ultra-low nox diesel engine generator set with roof-mounted selective catalytic reduction system8 Oct 2026US 2026/0309075 A1Industrial Service Solutions WC, Inc.
- Post-capture carbon dioxide processing and storage16 Jul 2026US 2026/0199830 A1Valero Services, Inc.
- Method for operating a drive device and corresponding drive device16 Jul 2026US 2026/0199835 A1Audi AG
- Method for flushing a pressure line of a delivery device16 Jul 2026US 2026/0201823 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Reducing no.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction171US 6,063,350 AClean Diesel Technologies, Inc. · 2000
- Control system for mobile NOx SCR applications125US 6,415,602 B1Engelhard Corporation · 2002
- Reducing NO.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction120US 5,976,475 AClean Diesel Technologies, Inc. · 1999
- Reducing NO.sub.x emissions from an engine by selective catalytic reduction utilizing solid reagents116US 5,809,775 AClean Diesel Technologies, Inc. · 1998
- Method for determining catalyst cool down temperature106US 6,742,330 B2Engelhard Corporation · 2004