F01N 13/082
Of tailpipe
Official title: {of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation (F01N13/20 takes precedence)}
F01N13/082 (Of tailpipe) appears on 466 US grants and 466 published applications in this corpus.
Search patents in F01N- Granted patents
- 466
- Published applications
- 466
- Assignees
- 218
- Inventors
- 1,032
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 9 | 6 |
| 2003 | 6 | 6 |
| 2004 | 7 | 8 |
| 2005 | 2 | 16 |
| 2006 | 7 | 10 |
| 2007 | 7 | 17 |
| 2008 | 7 | 20 |
| 2009 | 8 | 15 |
| 2010 | 14 | 24 |
| 2011 | 13 | 16 |
| 2012 | 13 | 28 |
| 2013 | 19 | 19 |
| 2014 | 20 | 30 |
| 2015 | 22 | 19 |
| 2016 | 18 | 20 |
| 2017 | 25 | 34 |
| 2018 | 14 | 27 |
| 2019 | 27 | 23 |
| 2020 | 26 | 34 |
| 2021 | 21 | 20 |
| 2022 | 33 | 21 |
| 2023 | 27 | 23 |
| 2024 | 26 | 12 |
| 2025 | 10 | 9 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust assembly with an exhaust component14 Jul 2026US 12,680,493 B2Ford Global Technologies, LLC
- System for cooling catalyzed combustion exhaust gas of hydrocarbon fueled internal combustion engines used in small power equipment and power tools16 Jun 2026US 12,655,780 B2Harbor Freight Tools USA, Inc.
- Deflector exhaust nozzle for AS350/EC130 and for other single engine helicopters24 Mar 2026US 12,584,433 B2Pacific Crown Helicopters
- Exhaust plume control structure and power generating plant including same24 Feb 2026US 12,560,322 B2General Electric Company
- Air/exhaust system for a vehicle30 Dec 2025US 12,510,013 B2Polaris Industries Inc.
- Dual Venturi Exhaust Assembly20 Aug 2026US 2026/0243189 A1
- Exhaust Closure Device16 Jul 2026US 2026/0201825 A1
- Fuel cell exhaust fluid drain reduction9 Jul 2026US 2026/0196536 A1Volvo Truck Corporation
- Exhaust assembly with an exhaust component18 Jun 2026US 2026/0168427 A1Ford Global Technologies, LLC
- Vehicle with a heat management group of exhaust gases28 May 2026US 2026/0146550 A1
Most cited
By later US patents
- Exhaust gas diffuser144US 7,779,961 B22010
- Automotive on-board monitoring system for catalytic converter evaluation82US 5,941,918 AEngelhard Corporation · 1999
- Exhaust valve70US 5,355,673 A1994
- Exhaust tip65US 7,007,720 B1Lacks Industries, Inc. · 2006
- Heat extracting muffler system54US 4,265,332 AFMC Corporation · 1981