F01N 3/0222
The structure being monolithic
Official title: {the structure being monolithic, e.g. honeycombs}
F01N3/0222 (The structure being monolithic) appears on 1,277 US grants and 1,500 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,277
- Published applications
- 1,500
- Assignees
- 282
- Inventors
- 2,214
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 14 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 13 | 0 |
| 1990 | 14 | 0 |
| 1991 | 8 | 0 |
| 1992 | 11 | 0 |
| 1993 | 11 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 3 |
| 2002 | 5 | 30 |
| 2003 | 16 | 43 |
| 2004 | 33 | 70 |
| 2005 | 21 | 80 |
| 2006 | 38 | 90 |
| 2007 | 41 | 101 |
| 2008 | 48 | 91 |
| 2009 | 63 | 103 |
| 2010 | 70 | 78 |
| 2011 | 79 | 66 |
| 2012 | 68 | 50 |
| 2013 | 60 | 31 |
| 2014 | 42 | 55 |
| 2015 | 42 | 71 |
| 2016 | 38 | 41 |
| 2017 | 49 | 75 |
| 2018 | 54 | 53 |
| 2019 | 56 | 62 |
| 2020 | 51 | 55 |
| 2021 | 52 | 62 |
| 2022 | 42 | 62 |
| 2023 | 53 | 44 |
| 2024 | 37 | 41 |
| 2025 | 30 | 23 |
| 2026 | 20 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Honeycomb filter26 May 2026US 12,636,603 B2NGK Insulators, Ltd.
- Coated filters26 May 2026US 12,637,966 B2Johnson Matthey Public Limited Company
- Exhaust system and features thereof21 Apr 2026US 12,607,140 B2ECC TEC MSJ Incorporated
- Honeycomb filter14 Apr 2026US 12,599,862 B2NGK Insulators, Ltd.
- Powder spraying system, powder spraying nozzle and method14 Apr 2026US 12,599,929 B2Johnson Matthey Public Limited Company
- Segment joint body1 Oct 2026US 2026/0298119 A1NGK Insulators, Ltd.
- Exhaust system and features thereof27 Aug 2026US 2026/0251080 A1ECC TEC MSJ Incorporated
- Honeycomb structure20 Aug 2026US 2026/0241375 A1NGK Insulators, Ltd.
- Exhaust gas purification catalyst13 Aug 2026US 2026/0233161 A1Mitsui Mining & Smelting Co., Ltd.
- Exhaust treatment system, method for treatment of an exhaust stream and control system therefore23 Jul 2026US 2026/0210278 A1Scania CV AB
Most cited
By later US patents
- Diesel particulate trap330US 4,329,162 ACorning Glass Works · 1982
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Honeycomb filter and ceramic filter assembly201US 6,669,751 B1Ibiden Co., Ltd. · 2003
- Ceramic structural body188US 5,914,187 AIbiden Co., Ltd. · 1999
- Honeycomb filter and method of making it163US 4,417,908 ACorning Glass Works · 1983