F01N 3/027
Using electric or magnetic heating means
Official title: using electric or magnetic heating means
F01N3/027 (Using electric or magnetic heating means) appears on 758 US grants and 676 published applications in this corpus.
Search patents in F01N- Granted patents
- 758
- Published applications
- 676
- Assignees
- 240
- Inventors
- 1,367
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 17 | 0 |
| 1986 | 2 | 0 |
| 1987 | 11 | 0 |
| 1988 | 7 | 0 |
| 1989 | 14 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 12 | 0 |
| 1993 | 16 | 0 |
| 1994 | 7 | 0 |
| 1995 | 18 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 13 | 0 |
| 1999 | 9 | 0 |
| 2000 | 12 | 0 |
| 2001 | 5 | 4 |
| 2002 | 9 | 15 |
| 2003 | 12 | 12 |
| 2004 | 8 | 36 |
| 2005 | 11 | 30 |
| 2006 | 24 | 29 |
| 2007 | 21 | 30 |
| 2008 | 12 | 31 |
| 2009 | 19 | 40 |
| 2010 | 21 | 34 |
| 2011 | 28 | 39 |
| 2012 | 32 | 22 |
| 2013 | 28 | 27 |
| 2014 | 31 | 23 |
| 2015 | 23 | 11 |
| 2016 | 16 | 19 |
| 2017 | 16 | 37 |
| 2018 | 22 | 34 |
| 2019 | 30 | 20 |
| 2020 | 34 | 26 |
| 2021 | 27 | 38 |
| 2022 | 28 | 43 |
| 2023 | 34 | 34 |
| 2024 | 39 | 22 |
| 2025 | 22 | 13 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for reducing emissions with smart alternator18 Aug 2026US 12,709,274 B2Cummins Inc.
- Filter regeneration process18 Aug 2026US 12,710,004 B1GM Global Technology Operations LLC
- Heater for exhaust pollution mitigation26 May 2026US 12,637,967 B1ECC TEC MSJ Incorporated
- Low resistance exhaust system with correction module for regeneration control5 May 2026US 12,618,353 B1
- Aftertreatment heater management for efficient thermal management21 Apr 2026US 12,607,139 B2Cummins Inc.
- Prime mover systems including variable speed clutches for alternators and methods of controlling same17 Sep 2026US 2026/0280456 A1Cummins Inc.
- Exhaust system and features thereof27 Aug 2026US 2026/0251080 A1ECC TEC MSJ Incorporated
- Heating element having an integrated electrode6 Aug 2026US 2026/0226854 A1Tenneco Automotive Operating Company Inc.
- Device for the electrical contacting of a heating conductor4 Jun 2026US 2026/0156717 A1Schaeffler Technologies AG & Co. KG
- Exhaust gas reduction device including electrically heated catalyst-coated particulate filter16 Apr 2026US 2026/0104002 A1Korea Institute of Machinery & Materials
Most cited
By later US patents
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- System comprising duel-fuel and after treatment for heavy-heavy duty diesel (HHDD) engines180US 10,287,943 B1Clean Power Technologies, LLC · 2019
- Method for purifying exhaust gas of a diesel engine146US 5,746,989 AToyota Jidosha Kabushiki Kaisha · 1998
- Exhaust emission control device for a diesel engine106US 4,934,142 AToyota Jidosha Kabushiki Kaisha · 1990