F01N 3/108
Auxiliary reduction catalysts
Official title: {Auxiliary reduction catalysts}
F01N3/108 (Auxiliary reduction catalysts) appears on 101 US grants and 121 published applications in this corpus.
Search patents in F01N- Granted patents
- 101
- Published applications
- 121
- Assignees
- 63
- Inventors
- 327
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 11 |
| 2008 | 2 | 4 |
| 2009 | 4 | 7 |
| 2010 | 5 | 7 |
| 2011 | 3 | 4 |
| 2012 | 6 | 6 |
| 2013 | 8 | 3 |
| 2014 | 4 | 3 |
| 2015 | 5 | 8 |
| 2016 | 2 | 8 |
| 2017 | 10 | 3 |
| 2018 | 1 | 6 |
| 2019 | 7 | 7 |
| 2020 | 2 | 9 |
| 2021 | 12 | 6 |
| 2022 | 6 | 7 |
| 2023 | 5 | 6 |
| 2024 | 7 | 6 |
| 2025 | 5 | 6 |
| 2026 | 4 | 2 |
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
- Method for controlling the operation of a hydrogen combustion engine system3 Feb 2026US 12,540,568 B2Volvo Truck Corporation
- Carbon dioxide reduction catalyst and carbon dioxide reduction method20 Jan 2026US 12,528,079 B2The Chugoku Electric Power Co., Inc.
- Hydrogen oxidation catalysts for hydrogen-internal combustion engine systems13 Jan 2026US 12,523,169 B2BASF Mobile Emissions Catalysts LLC
- Catalyst for simultaneously inhibiting emission of ammonia and nitrous oxide14 Oct 2025US 12,440,827 B2Korea Research Institute of Chemical Technology
- Aftertreatment system nox and ammonia control strategy13 Aug 2026US 2026/0235059 A1Cummins Inc.
- Reduction of nox and n2o in the exhaust gas of ship motors operated using nh330 Jul 2026US 2026/0216649 A1
- A method for controlling the operation of a hydrogen combustion engine system4 Dec 2025US 2025/0369380 A1Volvo Truck Corporation
- Exhaust gas system for predominantly stoichiometrically operated internal combustion engines, comprising a catalyst for reducing ammonia emissions9 Oct 2025US 2025/0312739 A1Umicore AG & Co. KG
- Exhaust gas aftertreatment system for an ammonia fueled internal combustion engine4 Sep 2025US 2025/0277466 A1Liebherr-Components Colmar SAS
Most cited
By later US patents
- Catalyst system for the reduction of NOx and NH3 emissions81US 7,332,135 B2Ford Global Technologies, LLC · 2008
- Exhaust gas purifying catalyst29US 6,133,185 AKabushiki Kaisha Toyota Chuo Kenkyusho · 2000
- Genset enclosure22US 8,601,772 B2Cummins Power Generation IP, Inc. · 2013
- Thermal management of hybrid LNT/SCR aftertreatment during desulfation19US 7,251,929 B2Eaton Corporation · 2007
- Catalyst system for the reduction of NOx and NH3 emissions19US 7,674,743 B2Ford Global Technologies, LLC · 2010