F01N 2470/14
Plurality of outlet tubes
Official title: Plurality of outlet tubes, e.g. in parallel or with different length
F01N2470/14 (Plurality of outlet tubes) appears on 189 US grants and 167 published applications in this corpus.
Search patents in F01N- Granted patents
- 189
- Published applications
- 167
- Assignees
- 109
- Inventors
- 405
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 1 |
| 2003 | 5 | 5 |
| 2004 | 1 | 4 |
| 2005 | 4 | 4 |
| 2006 | 2 | 6 |
| 2007 | 2 | 4 |
| 2008 | 2 | 9 |
| 2009 | 5 | 8 |
| 2010 | 4 | 7 |
| 2011 | 4 | 3 |
| 2012 | 6 | 9 |
| 2013 | 4 | 6 |
| 2014 | 11 | 9 |
| 2015 | 5 | 6 |
| 2016 | 8 | 11 |
| 2017 | 10 | 8 |
| 2018 | 4 | 8 |
| 2019 | 6 | 14 |
| 2020 | 10 | 8 |
| 2021 | 10 | 11 |
| 2022 | 15 | 13 |
| 2023 | 12 | 6 |
| 2024 | 7 | 4 |
| 2025 | 7 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalytic converter for a motor vehicle, as well as a motor vehicle31 Mar 2026US 12,590,554 B2Mercedes-Benz Group AG
- Car provided with an internal combustion engine having a side exhaust9 Dec 2025US 12,491,762 B2Ferrari S.P. A.
- Muffler and method for making a muffler9 Dec 2025US 12,492,653 B2Purem GmbH
- Exhaust gas system for an internal combustion engine9 Dec 2025US 12,492,657 B2Purem GmbH
- Exhaust silencing device and system, vehicle, and exhaust silencing method2 Sep 2025US 12,404,790 B2Zhejiang Geely Holding Group Co., Ltd.
- Exhaust units for road vehicles25 Dec 2025US 2025/0389217 A1Ferrari S.P. A.
- Silencer, cooling system, motor system and generator system25 Sep 2025US 2025/0297563 A1ABB Schweiz AG
- Exhaust port for a pneumatic valve or an air valve of a vehicle21 Aug 2025US 2025/0264045 A1Volvo Truck Corporation
- Exhaust gas system for an internal combustion engine26 Dec 2024US 2024/0426233 A1Purem GmbH
- Car provided with an internal combustion engine having a side exhaust28 Mar 2024US 2024/0100938 A1Ferrari S.P. A.
Most cited
By later US patents
- Muffler57US 6,164,412 AArvin Industries, Inc. · 2000
- Automobile exhaust noise suppressor54US 5,614,699 ANissan Motor Co., Ltd. · 1997
- Compositions and uses thereof44US 9,447,089 B2Hoffman-La Roche Inc. · 2016
- Exhaust sound attenuation and control system42US 6,651,773 B12003
- Easily controlled exhaust pipe39US 6,598,390 B2Liang Fei Industry Co., Ltd. · 2003