F01N 1/006
Comprising at least one perforated tube extending from inlet to outlet of
Official title: {comprising at least one perforated tube extending from inlet to outlet of the silencer}
F01N1/006 (Comprising at least one perforated tube extending from inlet to outlet of) appears on 116 US grants and 103 published applications in this corpus.
Search patents in F01N- Granted patents
- 116
- Published applications
- 103
- Assignees
- 73
- Inventors
- 284
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 5 |
| 2003 | 5 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 7 |
| 2006 | 3 | 5 |
| 2007 | 3 | 3 |
| 2008 | 4 | 7 |
| 2009 | 4 | 3 |
| 2010 | 0 | 5 |
| 2011 | 4 | 6 |
| 2012 | 11 | 6 |
| 2013 | 4 | 2 |
| 2014 | 5 | 3 |
| 2015 | 0 | 0 |
| 2016 | 0 | 6 |
| 2017 | 7 | 3 |
| 2018 | 1 | 5 |
| 2019 | 5 | 12 |
| 2020 | 2 | 3 |
| 2021 | 5 | 6 |
| 2022 | 7 | 6 |
| 2023 | 7 | 3 |
| 2024 | 3 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual mode muffler21 Oct 2025US 12,448,907 B2Tenneco Automotive Operating Company Inc.
- Exhaust device and method of manufacturing thereof27 Aug 2024US 12,071,875 B2Tenneco Automotive Operating Company Inc.
- Muffler device and compressor having the same2 Jul 2024US 12,025,134 B2Danfoss (Tianjin) Ltd.
- Muffler2 Jan 2024US 11,859,523 B2Honeywell International Inc.
- Surface component for vehicle exhaust system7 Nov 2023US 11,808,186 B2Tenneco Automotive Operating Company Inc.
- Fluid piping6 Aug 2026US 2026/0227020 A1Nissan Motor Co., Ltd.
- Exhaust Muffler12 Mar 2026US 2026/0071564 A1Tenneco Automotive Operating Company Inc.
- Dual Mode Muffler27 Feb 2025US 2025/0067201 A1Tenneco Automotive Operating Company Inc.
- Sound reducer and method of making same30 Nov 2023US 2023/0383886 A1UMFOTEC ACOUSTIC SOLUTIONS GmbH
- Exhaust device and method of manufacturing thereof16 Nov 2023US 2023/0366337 A1Tenneco Automotive Operating Company Inc.
Most cited
By later US patents
- Packless silencer55US 4,287,962 AIndustrial Acoustics Company, Inc. · 1981
- Exhaust system for internal combustion engines51US 5,388,408 ALawrence-Keech Inc. · 1995
- Ceramic filter construction and method50US 5,250,094 ADonaldson Company, Inc. · 1993
- Low frequency muffler49US 4,501,341 A1985
- Low backpressure straight-through reactive and dissipative muffler46US 5,365,025 ATennessee Gas Pipeline Company · 1994