F01N 3/36
Arrangements for supply of additional fuel
F01N3/36 (Arrangements for supply of additional fuel) appears on 421 US grants and 494 published applications in this corpus.
Search patents in F01N- Granted patents
- 421
- Published applications
- 494
- Assignees
- 197
- Inventors
- 1,107
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 5 |
| 2004 | 3 | 12 |
| 2005 | 7 | 22 |
| 2006 | 9 | 22 |
| 2007 | 7 | 20 |
| 2008 | 12 | 31 |
| 2009 | 12 | 30 |
| 2010 | 16 | 37 |
| 2011 | 22 | 25 |
| 2012 | 23 | 23 |
| 2013 | 17 | 50 |
| 2014 | 27 | 29 |
| 2015 | 25 | 25 |
| 2016 | 25 | 19 |
| 2017 | 27 | 20 |
| 2018 | 14 | 27 |
| 2019 | 26 | 18 |
| 2020 | 18 | 16 |
| 2021 | 17 | 9 |
| 2022 | 9 | 19 |
| 2023 | 19 | 16 |
| 2024 | 16 | 9 |
| 2025 | 11 | 5 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Aftertreatment system including preheating oxidation catalyst25 Nov 2025US 12,480,431 B2Cummins Emission Solutions Inc.
- Method for introducing heat into at least one component of an exhaust-gas aftertreatment device, software and open-loop or closed-loop control device23 Sep 2025US 12,421,882 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Method for operating an internal combustion engine, and internal combustion engine16 Sep 2025US 12,416,268 B2Robert Bosch GmbH
- Engine system having recuperated catalyst in exhaust system and method20 Aug 2026US 2026/0243186 A1Caterpillar Inc.
- Engine exhaust gas purification apparatus11 Jun 2026US 2026/0160193 A1Mazda Motor Corporation
- Method for Introducing Heat into at Least One Component of an Exhaust-Gas Aftertreatment Device, Software and Open-Loop or Closed-Loop Control Device29 Jan 2026US 2026/0028927 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Enhanced operation of hydrogen and ammonia engines11 Dec 2025US 2025/0376937 A1
- Purification system28 Aug 2025US 2025/0270947 A1Isuzu Motors Limited
Most cited
By later US patents
- Apparatus and method for internal combustion engine control173US 5,657,625 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Method of and control for monitoring and controlling an electric motor for driving a pump170US 10,018,096 B2Maxon Motor AG · 2018
- Low pressure injection and turbulent mixing in selective catalytic reduction system134US 6,449,947 B1Fleetguard, Inc. · 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
- System for fueling and feeding chemicals to internal combustion engines for NO.sub.x reduction97US 5,809,774 AClean Diesel Technologies, Inc. · 1998