F01N 2530/00
Selection of materials for tubes, chambers or housings
F01N2530/00 (Selection of materials for tubes, chambers or housings) appears on 410 US grants and 358 published applications in this corpus.
Search patents in F01N- Granted patents
- 410
- Published applications
- 358
- Assignees
- 266
- Inventors
- 1,024
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 12 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 11 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 3 |
| 2002 | 3 | 6 |
| 2003 | 7 | 10 |
| 2004 | 9 | 23 |
| 2005 | 10 | 17 |
| 2006 | 6 | 13 |
| 2007 | 11 | 14 |
| 2008 | 4 | 8 |
| 2009 | 6 | 13 |
| 2010 | 9 | 18 |
| 2011 | 10 | 18 |
| 2012 | 8 | 15 |
| 2013 | 18 | 22 |
| 2014 | 7 | 12 |
| 2015 | 11 | 13 |
| 2016 | 14 | 14 |
| 2017 | 15 | 22 |
| 2018 | 8 | 27 |
| 2019 | 28 | 19 |
| 2020 | 18 | 25 |
| 2021 | 16 | 11 |
| 2022 | 15 | 15 |
| 2023 | 12 | 10 |
| 2024 | 5 | 4 |
| 2025 | 5 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2530/02Corrosion resistive metalsIndexing code185
- F01N 2530/18Plastics materialIndexing code87
- F01N 2530/26Multi-layered wallsIndexing code67
- F01N 2530/22Flexible elastomeric materialIndexing code59
- F01N 2530/06Aluminium or alloys thereofIndexing code53
- F01N 2530/24Sintered porous materialIndexing code15
Recent patents
- Thermally resistant composite exhaust coupler30 Jun 2026US 12,669,078 B1Brunswick Corporation
- Sound absorbing element with low profile micro-louver slits and muffler assembly using the same9 Dec 2025US 12,492,654 B2ACS Industries, Inc.
- Muffler, exhaust system including a muffler, and method of making a muffler for an exhaust system11 Nov 2025US 12,467,392 B2Purem GmbH
- Multi-layer exhaust insulation systems and methods14 Oct 2025US 12,442,481 B2Lincoln Industries, Inc.
- Heating device9 Sep 2025US 12,414,203 B2Robert Bosch GmbH
- Heat-resistant, austenitic cast steel, and exhaust member made thereof14 May 2026US 2026/0132729 A1Proterial, Ltd.
- Ultra-pure ferritic stainless steel and its manufacturing method and use26 Feb 2026US 2026/0055493 A1Shanxi Taigang Stainless Steel Co., Ltd.
- Sound damper, in particular for a fuel-cell system20 Nov 2025US 2025/0357515 A1Purem GmbH
- Grommet and grommet assembly for machine fluid system18 Sep 2025US 2025/0290437 A1Caterpillar Inc.
- Holder for an exhaust system of an internal combustion engine and method of making same17 Apr 2025US 2025/0122822 A1Purem GmbH
Most cited
By later US patents
- Exhaust muffler174US 4,880,078 AHonda Giken Kogyo Kabushiki Kaisha · 1989
- Methods of fabricating bodies95US 4,098,722 AUnited Kingdom Atomic Energy Authority · 1978
- Muffler for internal combustion engines80US 4,589,516 AHonda Giken Kogyo Kabushiki Kaisha · 1986
- Muffler76US 4,890,691 A1990
- Vertical mount catalytic converter muffler73US 5,808,245 ADonaldson Company, Inc. · 1998