F01N 2240/04
An electric
Official title: an electric, e.g. electrostatic, device other than a heater
F01N2240/04 (An electric) appears on 112 US grants and 153 published applications in this corpus.
Search patents in F01N- Granted patents
- 112
- Published applications
- 153
- Assignees
- 87
- Inventors
- 318
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 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 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 5 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 3 | 4 |
| 2006 | 1 | 4 |
| 2007 | 0 | 2 |
| 2008 | 1 | 5 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 5 |
| 2012 | 2 | 7 |
| 2013 | 3 | 9 |
| 2014 | 7 | 4 |
| 2015 | 8 | 2 |
| 2016 | 5 | 7 |
| 2017 | 3 | 8 |
| 2018 | 9 | 7 |
| 2019 | 5 | 6 |
| 2020 | 4 | 9 |
| 2021 | 8 | 21 |
| 2022 | 12 | 23 |
| 2023 | 14 | 9 |
| 2024 | 9 | 4 |
| 2025 | 7 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for operating a pump assembly18 Nov 2025US 12,473,922 B2GKN Sinter Metals Engineering GmbH
- Aftertreatment heat up strategies21 Oct 2025US 12,448,908 B2Eaton Intelligent Power Limited
- Systems and methods for managing ammonia slip with a heater29 Jul 2025US 12,372,019 B2Cummins Inc.
- Support unit for supporting a heating conductor of an exhaust gas heater on a carrier structure1 Jul 2025US 12,345,190 B2Purem GmbH
- Techniques to synthesize greenhouse gases22 Apr 2025US 12,280,333 B2Nataqua, Inc.
- Reductant delivery system including a reductant pump4 Jun 2026US 2026/0153044 A1Cummins Emission Solutions Inc.
- Method for Operating a Pump Assembly1 Jan 2026US 2026/0002540 A1GKN Sinter Metals Engineering GmbH
- Exhaust gas treatment device and small combustion installation equipped therewith27 Feb 2025US 2025/0065267 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Aftertreatment heat up strategies13 Feb 2025US 2025/0052180 A1Eaton Intelligent Power Limited
- System for lighting off an auxiliary occupational emissions device and method of operating the same15 Aug 2024US 2024/0271554 A1Beecher Emission Solution Technologies, LLC
Most cited
By later US patents
- Nitrogen oxide decomposition process47US 3,983,021 AMonsanto Company · 1976
- Exhaust aftertreatment system with spiral mixer40US 7,712,305 B2Universal Silencer, LLC · 2010
- Exhaust-gas cleaning system with nitrogen oxide reduction and with the addition of reducing agent17US 6,969,492 B1Audi AG · 2005
- Exhaust system16US 7,150,147 B2Toyota Jidosha Kabushiki Kaisha · 2006
- Process and apparatus for reducing soot14US 4,441,971 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1984