F01N 3/032
During filter regeneration only
Official title: during filter regeneration only
F01N3/032 (During filter regeneration only) appears on 153 US grants and 56 published applications in this corpus.
Search patents in F01N- Granted patents
- 153
- Published applications
- 56
- Assignees
- 67
- Inventors
- 299
- Latest grant
- 25 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 11 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 5 |
| 2003 | 2 | 6 |
| 2004 | 7 | 8 |
| 2005 | 3 | 3 |
| 2006 | 3 | 5 |
| 2007 | 2 | 3 |
| 2008 | 2 | 1 |
| 2009 | 1 | 5 |
| 2010 | 1 | 3 |
| 2011 | 6 | 3 |
| 2012 | 2 | 2 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 1 | 4 |
| 2018 | 3 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and methods for dynamic control of filtration efficiency and fuel economy25 Jul 2023US 11,708,775 B2Cummins Emission Solutions Inc.
- Systems and methods for dynamic control of filtration efficiency and fuel economy25 Oct 2022US 11,480,082 B2Cummins Emission Solutions Inc.
- Siloxane removal system and media regeneration methods25 Feb 2020US 10,570,792 B2Granitefuel Engineering Inc.
- Method for cleaning process off- or engine exhaust gas14 May 2019US 10,286,360 B2Ecospray Technologies S.r.l.
- Dual catalytic converter exhaust-gas aftertreatment arrangement4 Dec 2018US 10,145,287 B2Volvo Car Corporation
- Systems and methods for dynamic control of filtration efficiency and fuel economy7 Jul 2022US 2022/0213822 A1Cummins Emission Solutions Inc.
- Systems and methods for dynamic control of filtration efficiency and fuel economy3 Feb 2022US 2022/0034245 A1Cummins Emission Solutions Inc.
- Siloxane removal system and media regeneration methods14 Jun 2018US 2018/0163587 A1Granitefuel Engineering Inc.
- Dual catalytic converter exhaust-gas aftertreatment arrangement23 Nov 2017US 2017/0335738 A1Volvo Car Corporation
- Method for cleaning process off- or engine exhaust gas3 Aug 2017US 2017/0216771 A1Ecospray Technologies S.r.l.
Most cited
By later US patents
- Exhaust processor114US 4,651,524 AArvin Industries, Inc. · 1987
- Muffler apparatus with filter trap and method of use96US 4,851,015 ADonaldson Company, Inc. · 1989
- Device for collecting particulates in exhaust gases89US 4,427,418 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1984
- Diesel engine exhaust gas recirculation system for NO.sub.x control incorporating a compressed air regenerative particulate control system76US 5,426,936 ACeraMem Corporation · 1995
- Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of diesel engine69US 4,404,795 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1983