F01N 13/1816
The pipe sections being joined together by flexible tubular elements only
Official title: {the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes}
F01N13/1816 (The pipe sections being joined together by flexible tubular elements only) appears on 309 US grants and 248 published applications in this corpus.
Search patents in F01N- Granted patents
- 309
- Published applications
- 248
- Assignees
- 177
- Inventors
- 612
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 14 | 0 |
| 2001 | 13 | 5 |
| 2002 | 8 | 5 |
| 2003 | 11 | 12 |
| 2004 | 5 | 8 |
| 2005 | 11 | 13 |
| 2006 | 2 | 8 |
| 2007 | 3 | 3 |
| 2008 | 3 | 9 |
| 2009 | 6 | 7 |
| 2010 | 5 | 14 |
| 2011 | 1 | 9 |
| 2012 | 8 | 12 |
| 2013 | 11 | 12 |
| 2014 | 9 | 23 |
| 2015 | 20 | 22 |
| 2016 | 19 | 19 |
| 2017 | 14 | 6 |
| 2018 | 11 | 19 |
| 2019 | 10 | 6 |
| 2020 | 10 | 10 |
| 2021 | 11 | 7 |
| 2022 | 10 | 4 |
| 2023 | 4 | 6 |
| 2024 | 6 | 5 |
| 2025 | 6 | 4 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermally resistant composite exhaust coupler30 Jun 2026US 12,669,078 B1Brunswick Corporation
- Internal engine combustion system26 May 2026US 12,637,970 B2Volvo Truck Corporation
- Exhaust treatment devices for exhaust aftertreatment system10 Feb 2026US 12,546,244 B1Cummins Emission Solutions Inc.
- Remote diesel oxidation catalyst for a prime mover of a transport power system25 Nov 2025US 12,480,432 B2Thermo King Corporation
- Exhaust handling systems for marine vessels and related methods12 Aug 2025US 12,384,508 B2Marathon Petroleum Company LP
- Exhaust handling systems for marine vessels and related methods27 Nov 2025US 2025/0360999 A1Marathon Petroleum Company LP
- Internal engine combustion system19 Jun 2025US 2025/0198320 A1Volvo Truck Corporation
- Exhaust assembly for a utility vehicle17 Apr 2025US 2025/0121678 A1Polaris Industries Inc.
- Remote diesel oxidation catalyst for a prime mover of a transport power system13 Mar 2025US 2025/0084779 A1Thermo King Corporation
- Engine5 Sep 2024US 2024/0295202 A1Yanmar Holdings Co., Ltd.
Most cited
By later US patents
- Flexible coupler apparatus66US 5,145,215 ASenior Engineering Investments AG · 1992
- Automotive catalytic converter exhaust system64US 4,345,430 AManville Service Corporation · 1982
- Tuned self-damping convoluted conduit63US 4,854,416 ATiteflex Corporation · 1989
- Exhaust system for automotive engine61US 5,195,607 AMazda Motor Corporation · 1993
- Flexible fluid conduit element with a metal bellows45US 5,901,754 AWitzenmann GmbH Metallschlauch-Fabrik Pforzheim · 1999