F01N 2900/1611
Particle filter ash amount
F01N2900/1611 (Particle filter ash amount) appears on 61 US grants and 67 published applications in this corpus.
Search patents in F01N- Granted patents
- 61
- Published applications
- 67
- Assignees
- 39
- Inventors
- 172
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 3 | 4 |
| 2011 | 1 | 1 |
| 2012 | 1 | 9 |
| 2013 | 6 | 2 |
| 2014 | 2 | 2 |
| 2015 | 5 | 4 |
| 2016 | 3 | 4 |
| 2017 | 1 | 5 |
| 2018 | 5 | 3 |
| 2019 | 4 | 3 |
| 2020 | 6 | 5 |
| 2021 | 2 | 3 |
| 2022 | 5 | 6 |
| 2023 | 6 | 5 |
| 2024 | 6 | 3 |
| 2025 | 4 | 2 |
| 2026 | 0 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for filter regeneration with cylinder deactivation16 Dec 2025US 12,497,927 B2Cummins Inc.
- Engine health and oil consumption rate diagnostic using back pressure4 Nov 2025US 12,460,568 B2Cummins Emission Solutions Inc.
- Systems and methods for cold operation NOx burden reduction23 Sep 2025US 12,421,910 B2Cummins Inc.
- Treatment device, treatment method, and exhaust gas treatment system2 Sep 2025US 12,404,795 B2Komatsu Ltd.
- Method for operating a particle filter taking the ash quantity into consideration22 Oct 2024US 12,123,331 B2AVL List GmbH
- Control device, control method, and engine system16 Jul 2026US 2026/0201824 A1Komatsu Ltd.
- System and method for maintaining operation of a regenerative soot filter2 Apr 2026US 2026/0092550 A1Cummins Power Generation Inc.
- Treatment device, treatment method, and exhaust gas treatment system20 Mar 2025US 2025/0092811 A1Komatsu Ltd.
- Engine health and oil consumption rate diagnostic using back pressure6 Feb 2025US 2025/0043710 A1Cummins Emission Solutions Inc.
- Systems and methods for cold operation nox burden reduction1 Aug 2024US 2024/0254938 A1Cummins Inc.
Most cited
By later US patents
- Method and system for controlling filter operation45US 8,384,397 B2Filter Sensing Technologies, Inc. · 2013
- Aftertreatment systems and methods for treatment of exhaust gas from diesel engine24US 10,690,033 B12020
- Method and apparatus for monitoring ash accumulation in a particulate filter of an emission abatement assembly23US 7,581,389 B2Emcon Technologies LLC · 2009
- Microwave sensing for determination of loading of filters23US 7,679,374 B2Massachusetts Institute of Technology · 2010
- System and method for measuring retentate in filters22US 8,384,396 B2Filter Sensing Technologies, Inc. · 2013