F01N 3/0224
The structure being granular
Official title: {the structure being granular}
F01N3/0224 (The structure being granular) appears on 27 US grants and 30 published applications in this corpus.
Search patents in F01N- Granted patents
- 27
- Published applications
- 30
- Assignees
- 28
- Inventors
- 98
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 0 | 4 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 3 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 3 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter for the aftertreatment of exhaust gases of internal combustion engines8 Apr 2025US 12,270,326 B2Umicore AG & Co. KG
- Particulate filter24 Dec 2024US 12,173,634 B2Cataler Corporation
- Inorganic oxide6 Jun 2023US 11,666,889 B2Sumitomo Chemical Company, Limited
- Composite material23 Nov 2021US 11,179,707 B2Johnson Matthey Catalysts (Germany) GMBH
- Composite material10 Nov 2020US 10,828,626 B2Johnson Matthey Catalysts (Germany) GMBH
- Honeycomb structure20 Aug 2026US 2026/0241375 A1NGK Insulators, Ltd.
- Feeding and exhaust system for internal combustion engine, or thermal unit, and respective method of operation13 Aug 2026US 2026/0235064 A1Rhapis S.R.L.
- Particulate filter22 Aug 2024US 2024/0280038 A1Cataler Corporation
- Filter for the aftertreatment of exhaust gases of internal combustion engines2 May 2024US 2024/0141812 A1Umicore AG & Co. KG
- Honeycomb structure and exhaust gas purifying device21 Apr 2022US 2022/0120203 A1NGK Insulators, Ltd.
Most cited
By later US patents
- High temperature nanofilter, system and method99US 7,052,532 B13M Innovative Properties Company · 2006
- Multi-chambered air cleaner74US 4,578,091 A1986
- Diesel NO.sub.x reduction by plasma-regenerated absorbend beds39US 5,715,677 AThe Regents of the University of California · 1998
- Filter or catalyst body29US 5,179,061 A1993
- Exhaust filter14US 5,606,854 AAir Filter Plus Inc. · 1997