F01N 2490/06
The gases flowing longitudinally from inlet to outlet in opposite directions
Official title: the gases flowing longitudinally from inlet to outlet in opposite directions
F01N2490/06 (The gases flowing longitudinally from inlet to outlet in opposite directions) appears on 114 US grants and 104 published applications in this corpus.
Search patents in F01N- Granted patents
- 114
- Published applications
- 104
- Assignees
- 73
- Inventors
- 291
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 4 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 2 | 4 |
| 2008 | 1 | 6 |
| 2009 | 2 | 5 |
| 2010 | 2 | 7 |
| 2011 | 8 | 5 |
| 2012 | 3 | 4 |
| 2013 | 5 | 1 |
| 2014 | 5 | 9 |
| 2015 | 7 | 17 |
| 2016 | 7 | 6 |
| 2017 | 13 | 3 |
| 2018 | 3 | 0 |
| 2019 | 1 | 10 |
| 2020 | 2 | 6 |
| 2021 | 5 | 4 |
| 2022 | 8 | 5 |
| 2023 | 3 | 2 |
| 2024 | 2 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Exhaust gas treatment unit8 Apr 2025US 12,270,324 B2Tenneco Inc.
- Annular catalytic converter21 Jan 2025US 12,201,941 B2Vitesco Technologies GmbH
- Exhaust gas aftertreatment device3 Dec 2024US 12,158,094 B2Vitesco Technologies GmbH
- Muffler2 Jan 2024US 11,859,523 B2Honeywell International Inc.
- Diesel exhaust treatement apparatus and methods19 Dec 2023US 11,846,223 B2Dinex A/S
- Exhaust gas treatment unit4 Jul 2024US 2024/0218819 A1Tenneco Inc.
- Exhaust gas aftertreatment device19 Oct 2023US 2023/0332528 A1Vitesco Technologies GmbH
- Muffler6 Jul 2023US 2023/0212967 A1Honeywell International Inc.
- Exhaust apparatus24 Nov 2022US 2022/0372900 A1Suzuki Motor Corporation
- Exhaust gas treatment assembly for an exhaust gas system of an internal combustion engine11 Aug 2022US 2022/0251994 A1Purem GmbH
Most cited
By later US patents
- Catalytic converter82US 6,722,124 B2Nelson Burgess Limited · 2004
- Flattened venturi, method and apparatus for making58US 4,690,245 AStemco Co., Ltd. · 1987
- Automobile exhaust noise suppressor54US 5,614,699 ANissan Motor Co., Ltd. · 1997
- Engine-control apparatus48US 4,926,636 AMazda Motor Corporation · 1990
- Engine exhaust noise suppressor42US 5,984,045 ANissan Motor Co., Ltd. · 1999