F01N 9/002
Electrical control of exhaust gas treating apparatus: of filter regeneration
Official title: {of filter regeneration}
F01N9/002 (Electrical control of exhaust gas treating apparatus: of filter regeneration) appears on 1,549 US grants and 1,720 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,549
- Published applications
- 1,720
- Assignees
- 326
- Inventors
- 2,857
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 10 | 0 |
| 1985 | 12 | 0 |
| 1986 | 12 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 12 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 4 |
| 2002 | 7 | 9 |
| 2003 | 4 | 28 |
| 2004 | 15 | 43 |
| 2005 | 32 | 69 |
| 2006 | 44 | 54 |
| 2007 | 42 | 85 |
| 2008 | 31 | 88 |
| 2009 | 51 | 100 |
| 2010 | 48 | 107 |
| 2011 | 73 | 108 |
| 2012 | 89 | 101 |
| 2013 | 103 | 115 |
| 2014 | 101 | 86 |
| 2015 | 104 | 90 |
| 2016 | 74 | 89 |
| 2017 | 90 | 97 |
| 2018 | 71 | 105 |
| 2019 | 108 | 89 |
| 2020 | 85 | 76 |
| 2021 | 85 | 50 |
| 2022 | 44 | 35 |
| 2023 | 45 | 31 |
| 2024 | 37 | 28 |
| 2025 | 32 | 19 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Treatment of particulate filters28 Jul 2026US 12,692,807 B2Johnson Matthey Public Limited Company
- Low resistance exhaust system with correction module for regeneration control5 May 2026US 12,618,353 B1
- Method and system for detecting and quantifying regeneration events in a diesel particulate filter5 May 2026US 12,618,354 B2Intangles Lab Pvt. Ltd.
- Treatment device, treatment method, and exhaust gas treatment system5 May 2026US 12,620,297 B2Komatsu Ltd.
- Aftertreatment heater management for efficient thermal management21 Apr 2026US 12,607,139 B2Cummins Inc.
- Method and device for detecting pressure difference of particulate filter27 Aug 2026US 2026/0251084 A1
- Control device, control method, and engine system16 Jul 2026US 2026/0201824 A1Komatsu Ltd.
- Pressure difference detection device for particulate collection filter2 Jul 2026US 2026/0185475 A1Toyota Jidosha Kabushiki Kaisha
- Controller for internal combustion engine25 Jun 2026US 2026/0176997 A1Toyota Jidosha Kabushiki Kaisha
- Method and device for regenerating exhaust particulate filter in v-type internal combustion engine for vehicle18 Jun 2026US 2026/0168422 A1Nissan Motor Co., Ltd.
Most cited
By later US patents
- Radio frequency process sensing, control, and diagnostics network and system267US 10,118,119 B2CTS Corporation · 2018
- Diesel particulate filter unit and regeneration control method of the same100US 6,622,480 B2Isuzu Motors Limited · 2003
- Muffler apparatus with filter trap and method of use96US 4,851,015 ADonaldson Company, Inc. · 1989
- Device for purifying the exhaust gas of a diesel engine85US 5,711,149 AToyota Jidosha Kabushiki Kaisha · 1998
- Exhaust gas purification control of diesel engine83US 7,631,493 B2Nissan Motor Co., Ltd. · 2009