F01N 3/2864
The mats or gaskets comprising two or more insulation layers
Official title: {the mats or gaskets comprising two or more insulation layers}
F01N3/2864 (The mats or gaskets comprising two or more insulation layers) appears on 149 US grants and 128 published applications in this corpus.
Search patents in F01N- Granted patents
- 149
- Published applications
- 128
- Assignees
- 71
- Inventors
- 269
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 5 |
| 2003 | 7 | 5 |
| 2004 | 3 | 6 |
| 2005 | 1 | 5 |
| 2006 | 1 | 8 |
| 2007 | 3 | 5 |
| 2008 | 1 | 8 |
| 2009 | 2 | 19 |
| 2010 | 11 | 7 |
| 2011 | 4 | 4 |
| 2012 | 13 | 10 |
| 2013 | 7 | 6 |
| 2014 | 11 | 10 |
| 2015 | 5 | 3 |
| 2016 | 5 | 3 |
| 2017 | 6 | 3 |
| 2018 | 3 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 5 |
| 2021 | 2 | 0 |
| 2022 | 1 | 5 |
| 2023 | 2 | 2 |
| 2024 | 3 | 3 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composite type heat insulator and method for producing the same19 Aug 2025US 12,392,445 B2Imae Industry Co., Ltd.
- Exhaust system component with multi-layer support mat13 May 2025US 12,297,761 B2Tenneco Automotive Operating Company Inc.
- Thermal insulation structure and method of making same29 Apr 2025US 12,286,922 B23M Innovative Properties Company
- Inorganic fiber-formed article, mat for exhaust gas cleaning apparatus, and exhaust gas cleaning apparatus17 Dec 2024US 12,168,841 B2Maftec Co., Ltd.
- Inorganic fiber-formed article, mat for exhaust gas cleaning apparatus, and exhaust gas cleaning apparatus8 Oct 2024US 12,110,622 B2Maftec Co., Ltd.
- Support structure for a heating matrix25 Jun 2026US 2026/0176996 A1Schaeffler Technologies AG & Co. KG
- Exhaust system component with multi-layer support mat10 Oct 2024US 2024/0337208 A1Tenneco Automotive Operating Company Inc.
- A thermal insulating member for a vehicle component11 Jul 2024US 2024/0227355 A1Volvo Truck Corporation
- Mat material, exhaust gas purification device, and method for producing mat material23 May 2024US 2024/0165913 A1Ibiden Co., Ltd.
- Exhaust gas treatment arrangement28 Sep 2023US 2023/0304431 A1Purem GmbH
Most cited
By later US patents
- Catalytic converter107US 4,929,429 AMinnesota Mining and Manufacturing Company · 1990
- Multilayer intumescent sheet93US 6,051,193 A3M Innovative Properties Company · 2000
- High temperature gasket87US 4,156,533 AMinnesota Mining and Manufacturing Company · 1979
- Catalytic apparatus84US 4,142,864 AEngelhard Minerals & Chemicals Corporation · 1979
- Exhaust gas catalytic purifier construction81US 5,569,455 AMazda Motor Corporation · 1996