F01N 2330/00
Structure of catalyst support or particle filter
F01N2330/00 (Structure of catalyst support or particle filter) appears on 2,685 US grants and 2,268 published applications in this corpus.
Search patents in F01N- Granted patents
- 2,685
- Published applications
- 2,268
- Assignees
- 643
- Inventors
- 4,324
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 17 | 0 |
| 1978 | 17 | 0 |
| 1979 | 11 | 0 |
| 1980 | 23 | 0 |
| 1981 | 25 | 0 |
| 1982 | 32 | 0 |
| 1983 | 29 | 0 |
| 1984 | 24 | 0 |
| 1985 | 26 | 0 |
| 1986 | 18 | 0 |
| 1987 | 26 | 0 |
| 1988 | 26 | 0 |
| 1989 | 52 | 0 |
| 1990 | 54 | 0 |
| 1991 | 45 | 0 |
| 1992 | 69 | 0 |
| 1993 | 59 | 0 |
| 1994 | 50 | 0 |
| 1995 | 70 | 0 |
| 1996 | 44 | 0 |
| 1997 | 43 | 0 |
| 1998 | 49 | 0 |
| 1999 | 36 | 0 |
| 2000 | 29 | 0 |
| 2001 | 32 | 9 |
| 2002 | 26 | 54 |
| 2003 | 46 | 78 |
| 2004 | 51 | 110 |
| 2005 | 43 | 122 |
| 2006 | 61 | 107 |
| 2007 | 69 | 133 |
| 2008 | 57 | 102 |
| 2009 | 87 | 115 |
| 2010 | 77 | 81 |
| 2011 | 88 | 76 |
| 2012 | 67 | 54 |
| 2013 | 62 | 48 |
| 2014 | 49 | 70 |
| 2015 | 61 | 93 |
| 2016 | 48 | 58 |
| 2017 | 74 | 98 |
| 2018 | 73 | 126 |
| 2019 | 99 | 124 |
| 2020 | 102 | 123 |
| 2021 | 98 | 126 |
| 2022 | 115 | 128 |
| 2023 | 108 | 105 |
| 2024 | 71 | 58 |
| 2025 | 72 | 40 |
| 2026 | 34 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2330/06CeramicIndexing code1,300
- F01N 2330/30Honeycomb supports characterised by their structural detailsIndexing code967
- F01N 2330/02Metallic plates or honeycombsIndexing code646
- F01N 2330/10Fibrous materialIndexing code257
- F01N 2330/14Sintered materialIndexing code142
- F01N 2330/60Discontinuous, uneven properties of filter materialIndexing code140
- F01N 2330/12Metallic wire mesh fabric or knittingIndexing code138
- F01N 2330/08Granular materialIndexing code115
Recent patents
- Exhaust gas purification device and method for manufacturing exhaust gas purification device29 Sep 2026US 12,746,533 B2Cataler Corporation
- Method for manufacturing exhaust gas purification catalyst29 Sep 2026US 12,746,538 B2Cataler Corporation
- Post-processing system15 Sep 2026US 12,736,003 B2Isuzu Motors Limited
- Honeycomb structure8 Sep 2026US 12,728,377 B2NGK Insulators, Ltd.
- Catalytic material for treating an exhaust gas produced by a natural gas engine1 Sep 2026US 12,722,145 B2Johnson Matthey Public Limited Company
- Segment joint body1 Oct 2026US 2026/0298119 A1NGK Insulators, Ltd.
- Decomposition chamber for aftertreatment system1 Oct 2026US 2026/0298121 A1Cummins Emission Solutions Inc.
- Honeycomb structure20 Aug 2026US 2026/0241375 A1NGK Insulators, Ltd.
- Gasoline particulate filter20 Aug 2026US 2026/0243183 A1
- Honeycomb heater body13 Aug 2026US 2026/0235061 A1Corning Incorporated
Most cited
By later US patents
- Diesel particulate trap330US 4,329,162 ACorning Glass Works · 1982
- Treatment of diesel exhaust gases207US 4,902,487 AJohnson Matthey PLC · 1990
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- Honeycomb filter and ceramic filter assembly201US 6,669,751 B1Ibiden Co., Ltd. · 2003
- Ceramic structural body188US 5,914,187 AIbiden Co., Ltd. · 1999