F01N 3/103
Oxidation catalysts for hc and co only
Official title: {Oxidation catalysts for HC and CO only}
F01N3/103 (Oxidation catalysts for hc and co only) appears on 1,089 US grants and 1,340 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,089
- Published applications
- 1,340
- Assignees
- 292
- Inventors
- 2,380
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 6 |
| 2003 | 3 | 2 |
| 2004 | 2 | 9 |
| 2005 | 3 | 10 |
| 2006 | 6 | 16 |
| 2007 | 7 | 17 |
| 2008 | 4 | 13 |
| 2009 | 13 | 31 |
| 2010 | 16 | 49 |
| 2011 | 11 | 80 |
| 2012 | 36 | 65 |
| 2013 | 62 | 74 |
| 2014 | 63 | 60 |
| 2015 | 75 | 103 |
| 2016 | 64 | 102 |
| 2017 | 107 | 131 |
| 2018 | 88 | 121 |
| 2019 | 116 | 84 |
| 2020 | 79 | 85 |
| 2021 | 79 | 70 |
| 2022 | 82 | 76 |
| 2023 | 63 | 52 |
| 2024 | 47 | 37 |
| 2025 | 37 | 23 |
| 2026 | 20 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust gas purification catalyst6 Oct 2026US 12,752,237 B2Cataler Corporation
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Work vehicle and aftertreatment system therefor25 Aug 2026US 12,716,375 B2Deere & Company
- Method for operating an exhaust gas post-treatment device for an internal combustion engine of a motor vehicle, in particular of a motor car25 Aug 2026US 12,716,376 B2Mercedes-Benz Group AG
- Multi-stage emission system for large displacement compression ignition non-road diesel generator systems for emergency and non-emergency stationary power applications14 Jul 2026US 12,680,488 B2Bluefin ESI, Inc.
- Systems and methods for diesel oxidation catalyst aging prognostics and diagnosis27 Aug 2026US 2026/0249244 A1Cummins Inc.
- Engine system having recuperated catalyst in exhaust system and method20 Aug 2026US 2026/0243186 A1Caterpillar Inc.
- Exhaust gas purification device, exhaust gas purification method, and control device20 Aug 2026US 2026/0243204 A1Komatsu Ltd.
- Robust control systems and methods of catalyst temperature stability with heater assistance13 Aug 2026US 2026/0235060 A1Cummins Inc.
- Work vehicle and aftertreatment system therefor6 Aug 2026US 2026/0226857 A1Deere & Company
Most cited
By later US patents
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- System comprising duel-fuel and after treatment for heavy-heavy duty diesel (HHDD) engines180US 10,287,943 B1Clean Power Technologies, LLC · 2019
- 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
- Method for determining catalyst cool down temperature106US 6,742,330 B2Engelhard Corporation · 2004