F01N 2330/60
Discontinuous, uneven properties of filter material
Official title: Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing
F01N2330/60 (Discontinuous, uneven properties of filter material) appears on 140 US grants and 178 published applications in this corpus.
Search patents in F01N- Granted patents
- 140
- Published applications
- 178
- Assignees
- 58
- Inventors
- 347
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 2 |
| 2007 | 1 | 4 |
| 2008 | 2 | 9 |
| 2009 | 2 | 11 |
| 2010 | 6 | 9 |
| 2011 | 6 | 7 |
| 2012 | 6 | 7 |
| 2013 | 8 | 8 |
| 2014 | 5 | 10 |
| 2015 | 9 | 18 |
| 2016 | 9 | 13 |
| 2017 | 12 | 18 |
| 2018 | 10 | 9 |
| 2019 | 18 | 14 |
| 2020 | 9 | 13 |
| 2021 | 7 | 8 |
| 2022 | 15 | 9 |
| 2023 | 6 | 2 |
| 2024 | 4 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Honeycomb structure10 Feb 2026US 12,546,243 B2NGK Insulators, Ltd.
- Filter and method for manufacturing same20 May 2025US 12,305,551 B2NGK Insulators, Ltd.
- Annular catalytic converter21 Jan 2025US 12,201,941 B2Vitesco Technologies GmbH
- Honeycomb filter bodies and particulate filters comprising honeycomb filter bodies5 Nov 2024US 12,134,059 B2Corning Incorporated
- Exhaust gas purification device16 Jul 2024US 12,036,510 B2Cataler Corporation
- Honeycomb filter bodies and particulate filters comprising honeycomb filter bodies16 Jan 2025US 2025/0018323 A1Corning Incorporated
- Particulate filter having a centralized-distributed pgm and process for preparing the same26 Dec 2024US 2024/0424444 A1BASF SE
- Honeycomb body for exhaust-gas aftertreatment, having slotted metal foils19 Dec 2024US 2024/0418115 A1Vitesco Technologies GmbH
- Honeycomb structure, electrically heating catalyst support and exhaust gas purifying device7 Sep 2023US 2023/0278022 A1NGK Insulators, Ltd.
- Catalytically active particle filter with a high degree of filtration efficiency27 Apr 2023US 2023/0127269 A1Umicore AG & Co. KG
Most cited
By later US patents
- Heat-resistant and regeneratable filter body with flow paths and process for producing the filter body36US 6,534,021 B1EMITEC Gesellschaft fuer Emissionstechnologie mbH · 2003
- Exhaust after-treatment system for the reduction of pollutants from diesel engine exhaust and related method28US 7,266,943 B2Converter Technology, Inc. · 2007
- Apparatus for sensing particulates in a gas flow stream22US 7,334,401 B2GM Global Technology Operations LLC · 2008
- Particle trap and process for separating particles out of an exhaust gas flow and honeycomb body and exhaust system having a particle trap20US 6,712,884 B2EMITEC Gesellschaft fuer Emisssionstechnologies GmbH · 2004
- Undulated-wall honeycomb structure and manufacturing method thereof19US 7,655,195 B1NGK Insulators, Ltd. · 2010