F01N 2450/40
Retrofitting exhaust apparatus
F01N2450/40 (Retrofitting exhaust apparatus) appears on 25 US grants and 35 published applications in this corpus.
Search patents in F01N- Granted patents
- 25
- Published applications
- 35
- Assignees
- 19
- Inventors
- 69
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 5 |
| 2003 | 1 | 0 |
| 2004 | 2 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 2 |
| 2017 | 0 | 3 |
| 2018 | 1 | 1 |
| 2019 | 4 | 4 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Post-combustion engine exhaust gases absorber18 Aug 2026US 12,710,005 B2
- Exhaust treatment devices for exhaust aftertreatment system10 Feb 2026US 12,546,244 B1Cummins Emission Solutions Inc.
- Modularly constructed exhaust gas treatment arrangement19 Aug 2025US 12,392,271 B2Purem GmbH
- Cleaning system for a vehicle component13 Dec 2022US 11,525,423 B2Volvo Car Corporation
- Dual function manifold assembly incorporating a detachable catalytic converter18 Oct 2022US 11,473,483 B2Fabspeed.com, Inc.
- Component of an exhaust system replacing a particulate filter11 Jun 2026US 2026/0160192 A1Capristo Automotive GmbH
- Post-Combustion Engine Exhaust Gases Absorber28 Nov 2024US 2024/0392712 A1
- Modularly constructed exhaust gas treatment arrangement24 Oct 2024US 2024/0352883 A1Purem GmbH
- Dual function manifold assembly incorporating a detachable catalytic converter30 Dec 2021US 2021/0404369 A1Fabspeed.com, Inc.
- Application-Adaptable Engine Repair Template10 Sep 2020US 2020/0284183 A1
Most cited
By later US patents
- Agricultural vehicle emission aftertreatment device utilizing heat exchanger ventilation24US 8,167,067 B2AGCO Corporation · 2012
- Device for reducing the NOx content in the exhaust gas of an internal combustion engine20US 6,192,676 B1Siemens Aktiengesellschaft · 2001
- Retrofit injector mount10US 8,495,986 B2Tenneco Automotive Operating Company Inc. · 2013
- Exhaust muffler for a fuel-operated heating device9US 6,681,889 B2J. Eberspächer GmbH & Co. KG · 2004
- Exhaust aftertreatment system7US 8,635,861 B2Caterpillar Inc. · 2014