F01N 2330/32
Characterised by the shape, form or number of corrugations of plates, sheets
Official title: characterised by the shape, form or number of corrugations of plates, sheets or foils
F01N2330/32 (Characterised by the shape, form or number of corrugations of plates, sheets) appears on 197 US grants and 154 published applications in this corpus.
Search patents in F01N- Granted patents
- 197
- Published applications
- 154
- Assignees
- 101
- Inventors
- 437
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 4 |
| 2003 | 5 | 9 |
| 2004 | 8 | 6 |
| 2005 | 3 | 9 |
| 2006 | 5 | 5 |
| 2007 | 6 | 8 |
| 2008 | 3 | 5 |
| 2009 | 4 | 6 |
| 2010 | 7 | 5 |
| 2011 | 6 | 4 |
| 2012 | 3 | 2 |
| 2013 | 4 | 7 |
| 2014 | 3 | 7 |
| 2015 | 7 | 5 |
| 2016 | 3 | 1 |
| 2017 | 4 | 7 |
| 2018 | 5 | 8 |
| 2019 | 7 | 11 |
| 2020 | 7 | 12 |
| 2021 | 13 | 5 |
| 2022 | 7 | 8 |
| 2023 | 5 | 10 |
| 2024 | 8 | 3 |
| 2025 | 0 | 2 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2330/321With two or more different kinds of corrugations in the same substrateIndexing code64
- F01N 2330/323Corrugations of saw-tooth or triangular formIndexing code39
- F01N 2330/322Corrugations of trapezoidal formIndexing code31
- F01N 2330/324Corrugations of rectangular formIndexing code20
- F01N 2330/325Corrugations of omega formIndexing code4
Recent patents
- Exhaust gas purification device and method for manufacturing exhaust gas purification device29 Sep 2026US 12,746,533 B2Cataler Corporation
- Honeycomb structure, electrically heating support, and exhaust gas purification device25 Aug 2026US 12,716,374 B2NGK Insulators, Ltd.
- Pillar-shaped honeycomb structure13 Jan 2026US 12,521,698 B2NGK Insulators, Ltd.
- Plugged honeycomb structure3 Dec 2024US 12,157,116 B2NGK Insulators, Ltd.
- Lean NOx trap plus low temperature NOx adsorber system for low temperature NOx trapping29 Oct 2024US 12,129,779 B2BASF SE
- Honeycomb heater body13 Aug 2026US 2026/0235061 A1Corning Incorporated
- Apparatus for exhaust gas aftertreatment having a slotted matrix9 Jul 2026US 2026/0193999 A1Emitec Technologies GmbH
- Exhaust gas purification device30 Apr 2026US 2026/0117689 A1Toyota Jidosha Kabushiki Kaisha
- Catalyzed particulate filter and method for producing the same26 Feb 2026US 2026/0054260 A1Mazda Motor Corporation
- Catalyst device2 Oct 2025US 2025/0305434 A1Goshi Giken Co., Ltd.
Most cited
By later US patents
- Catalyst structure employing integral heat exchange105US 5,512,250 ACatalytica, Inc. · 1996
- Process and catalyst structure employing intergal heat exchange with optional downstream flameholder100US 5,518,697 ACatalytica, Inc. · 1996
- Methods of fabricating bodies95US 4,098,722 AUnited Kingdom Atomic Energy Authority · 1978
- Catalyst structure having integral heat exchange93US 5,250,489 ACatalytica, Inc. · 1993
- Reactor and packing element for catalyzed chemical reactions70US 4,731,229 ASulzer Brothers Limited · 1988