F01N 13/20
Exhaust or silencing apparatus characterised by constructional features: having flared outlets
Official title: having flared outlets, e.g. of fish-tail shape
F01N13/20 (Exhaust or silencing apparatus characterised by constructional features: having flared outlets) appears on 76 US grants and 91 published applications in this corpus.
Search patents in F01N- Granted patents
- 76
- Published applications
- 91
- Assignees
- 56
- Inventors
- 188
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 2 |
| 2004 | 1 | 6 |
| 2005 | 2 | 5 |
| 2006 | 1 | 0 |
| 2007 | 1 | 6 |
| 2008 | 2 | 4 |
| 2009 | 2 | 7 |
| 2010 | 0 | 6 |
| 2011 | 6 | 4 |
| 2012 | 3 | 7 |
| 2013 | 4 | 2 |
| 2014 | 2 | 7 |
| 2015 | 4 | 3 |
| 2016 | 6 | 4 |
| 2017 | 4 | 3 |
| 2018 | 1 | 3 |
| 2019 | 3 | 5 |
| 2020 | 4 | 7 |
| 2021 | 4 | 3 |
| 2022 | 8 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sound-attenuating devices18 Aug 2026US 12,709,996 B2Solar Turbines Incorporated
- Exhaust plume control structure and power generating plant including same24 Feb 2026US 12,560,322 B2General Electric Company
- Straddle type vehicle13 Feb 2024US 11,897,566 B2Honda Motor Co., Ltd.
- Exhaust lining having a connecting element31 Jan 2023US 11,566,556 B2Cisma Solutions ApS
- Exhaust system for an internal combustion engine22 Nov 2022US 11,506,096 B2Ferrari S.P. A.
- Sound-attenuating devices7 Aug 2025US 2025/0250922 A1Solar Turbines Incorporated
- Mixer for exhaust aftertreatment system24 Jul 2025US 2025/0237160 A1Cummins Emission Solutions Inc.
- Muffler23 Jan 2025US 2025/0027439 A1Marelli Corporation
- Exhaust plume control structure and power generating plant including same3 Aug 2023US 2023/0243500 A1General Electric Company
- Exhaust gas diffusing device30 Jun 2022US 2022/0203314 A1Kubota Corporation
Most cited
By later US patents
- Exhaust tip65US 7,007,720 B1Lacks Industries, Inc. · 2006
- Modular muffler for motor vehicles36US 5,371,331 A1994
- Integral fluted tube for sound suppression and exhaust ejection34US 4,580,657 ADonaldson Company, Inc. · 1986
- Exhaust outlet with venturi29US 5,174,113 ADevil, societe anonyme · 1992
- Twin muffler27US 6,382,348 B12002