F01N 2310/00
Selection of sound absorbing or insulating material
F01N2310/00 (Selection of sound absorbing or insulating material) appears on 411 US grants and 315 published applications in this corpus.
Search patents in F01N- Granted patents
- 411
- Published applications
- 315
- Assignees
- 241
- Inventors
- 858
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 20 | 0 |
| 1992 | 10 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 13 | 0 |
| 2000 | 12 | 0 |
| 2001 | 5 | 2 |
| 2002 | 3 | 12 |
| 2003 | 17 | 13 |
| 2004 | 6 | 10 |
| 2005 | 8 | 19 |
| 2006 | 5 | 17 |
| 2007 | 7 | 13 |
| 2008 | 12 | 11 |
| 2009 | 1 | 31 |
| 2010 | 12 | 15 |
| 2011 | 16 | 16 |
| 2012 | 21 | 14 |
| 2013 | 15 | 9 |
| 2014 | 10 | 14 |
| 2015 | 10 | 18 |
| 2016 | 8 | 15 |
| 2017 | 8 | 8 |
| 2018 | 13 | 10 |
| 2019 | 10 | 11 |
| 2020 | 7 | 12 |
| 2021 | 8 | 18 |
| 2022 | 19 | 11 |
| 2023 | 12 | 3 |
| 2024 | 7 | 6 |
| 2025 | 6 | 5 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2310/02Mineral woolIndexing code217
- F01N 2310/14Wire mesh fabric, woven glass cloth or the likeIndexing code85
- F01N 2310/04Metallic woolIndexing code61
- F01N 2310/06Porous ceramicsIndexing code49
- F01N 2310/12Granular materialIndexing code17
- F01N 2310/10Plastic foamIndexing code8
- F01N 2310/08Exfoliated vermiculiteIndexing code4
Recent patents
- Exhaust gas assembly28 Oct 2025US 12,454,902 B2The University of Adelaide
- Dual purpose energy plant16 Sep 2025US 12,416,245 B2Nuovo Pignone Tecnologie Srl
- Exhaust system component with multi-layer support mat13 May 2025US 12,297,761 B2Tenneco Automotive Operating Company Inc.
- Interconnection system of a urea-based reducing agent injector to an after-treatment an exhaust gas device29 Apr 2025US 12,286,914 B2Fpt Industrial S.P.A.
- Exhaust gas purification catalyst21 Jan 2025US 12,201,965 B2Cataler Corporation
- Exhaust muffler2 Apr 2026US 2026/0092545 A1Tenneco Automotive Operating Company Inc.
- Exhaust Muffler12 Mar 2026US 2026/0071564 A1Tenneco Automotive Operating Company Inc.
- Exhaust assembly heat mitigation system14 Aug 2025US 2025/0257680 A1Caterpillar Inc.
- Dual purpose energy plant8 May 2025US 2025/0146423 A1Nuovo Pignone Tecnologie Srl
- Thermal Insulation System for Exhaust Gas Temperature Management1 May 2025US 2025/0137571 A1
Most cited
By later US patents
- Outlet silencer and heat recovery structures for gas turbine177US 6,851,514 B2Air Handling Engineering Ltd. · 2005
- Exhaust muffler174US 4,880,078 AHonda Giken Kogyo Kabushiki Kaisha · 1989
- Vehicle exhaust system118US 7,766,123 B2Yamaha Hatsudoki Kabushiki Kaisha · 2010
- Blower pipe with silencer111US 5,841,080 AKioritz Corporation · 1998
- Muffler apparatus with filter trap and method of use96US 4,851,015 ADonaldson Company, Inc. · 1989