F01N 3/2853
Using mats or gaskets between catalyst body and housing
Official title: {using mats or gaskets between catalyst body and housing}
F01N3/2853 (Using mats or gaskets between catalyst body and housing) appears on 780 US grants and 624 published applications in this corpus.
Search patents in F01N- Granted patents
- 780
- Published applications
- 624
- Assignees
- 257
- Inventors
- 1,178
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 10 | 0 |
| 1978 | 6 | 0 |
| 1979 | 13 | 0 |
| 1980 | 12 | 0 |
| 1981 | 12 | 0 |
| 1982 | 14 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 24 | 0 |
| 1993 | 13 | 0 |
| 1994 | 11 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 9 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 15 | 0 |
| 2001 | 17 | 11 |
| 2002 | 15 | 26 |
| 2003 | 23 | 34 |
| 2004 | 18 | 45 |
| 2005 | 16 | 40 |
| 2006 | 13 | 27 |
| 2007 | 24 | 38 |
| 2008 | 25 | 34 |
| 2009 | 17 | 48 |
| 2010 | 35 | 29 |
| 2011 | 19 | 31 |
| 2012 | 37 | 45 |
| 2013 | 26 | 30 |
| 2014 | 47 | 33 |
| 2015 | 31 | 16 |
| 2016 | 18 | 26 |
| 2017 | 22 | 12 |
| 2018 | 18 | 15 |
| 2019 | 13 | 13 |
| 2020 | 15 | 20 |
| 2021 | 10 | 12 |
| 2022 | 11 | 14 |
| 2023 | 12 | 7 |
| 2024 | 11 | 7 |
| 2025 | 9 | 7 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 3/2857The mats or gaskets being at least partially made of intumescent material220
- F01N 3/2864The mats or gaskets comprising two or more insulation layers149
- F01N 3/2867The mats or gaskets being placed at the front or end face126
- F01N 3/2871The mats or gaskets having an additional29
- F01N 3/286The mats or gaskets having corrugations or cavities3
Recent patents
- Space filling material, method for manufacturing same, and space filling structure10 Mar 2026US 12,571,163 B2Kuraray Co., Ltd.
- Process for replacing a core of diesel emission control device23 Dec 2025US 12,502,663 B2DET Diesel Emission Technologies, LLC
- Three-way catalytic converter and device for processing tail gas16 Dec 2025US 12,497,914 B2Shanghai Fusion Tech Co., Ltd.
- Exhaust-gas heater2 Dec 2025US 12,486,791 B2Purem GmbH
- Exhaust gas aftertreatment device having small cavities11 Nov 2025US 12,467,397 B2Vitesco Technologies GmbH
- Zero binder polycrystalline mounting mat with improved production handling9 Jul 2026US 2026/0193833 A13M Innovative Properties Company
- Support structure for a heating matrix25 Jun 2026US 2026/0176996 A1Schaeffler Technologies AG & Co. KG
- System and method for removing a core of diesel emission control device19 Feb 2026US 2026/0048388 A1Diesel Emission Technologies LLC
- System and process for replacing a core of diesel emission control device15 Jan 2026US 2026/0014553 A1Diesel Emission Technologies LLC
- Mat material, exhaust gas purification apparatus, and method for manufacturing exhaust gas purification apparatus20 Nov 2025US 2025/0354511 A1Ibiden Co., Ltd.
Most cited
By later US patents
- Flexible nonwoven mat204US 5,380,580 AMinnesota Mining and Manufacturing Company · 1995
- Catalytic converter having a metallic monolith mounted by a heat-insulating mat of refractory ceramic fibers154US 5,250,269 AMinnesota Mining and Manufacturing Company · 1993
- Catalytic converter for automotive exhaust system110US 4,617,176 AMinnesota Mining and Manufacturing Company · 1986
- Catalytic converter107US 4,929,429 AMinnesota Mining and Manufacturing Company · 1990
- Intumescent sheet material103US 4,305,992 AMinnesota Mining and Manufacturing Company · 1981