F01N 2900/1812
Flow rate
F01N2900/1812 (Flow rate) appears on 209 US grants and 230 published applications in this corpus.
Search patents in F01N- Granted patents
- 209
- Published applications
- 230
- Assignees
- 77
- Inventors
- 502
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 4 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 0 | 1 |
| 2011 | 6 | 6 |
| 2012 | 1 | 9 |
| 2013 | 2 | 11 |
| 2014 | 9 | 13 |
| 2015 | 13 | 14 |
| 2016 | 14 | 10 |
| 2017 | 17 | 25 |
| 2018 | 21 | 22 |
| 2019 | 27 | 29 |
| 2020 | 23 | 22 |
| 2021 | 19 | 16 |
| 2022 | 17 | 9 |
| 2023 | 9 | 14 |
| 2024 | 14 | 8 |
| 2025 | 11 | 9 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for monitoring nitrogen dioxide variability in an engine aftertreatment system10 Feb 2026US 12,546,242 B1Caterpillar Inc.
- Model predictive control for aftertreatment regeneration3 Feb 2026US 12,540,570 B2Caterpillar Inc.
- Motor vehicle provided with an after-treatment apparatus and a device for heating the after-treatment apparatus6 Jan 2026US 12,516,617 B2Ferrari S.P. A.
- Control device and method for deriving engine-out NOx concentration19 Aug 2025US 12,392,269 B2Scania CV AB
- Urea sender unit15 Jul 2025US 12,359,599 B2Errencinque S.R.L.
- Ammonia gasifier for a selective catalytic reduction device, and associated systems and methods7 May 2026US 2026/0125999 A1Safety Power Inc.
- Method for determining a flow rate of fluid in a vehicle engine system12 Feb 2026US 2026/0043369 A1Vitesco Technologies GmbH
- Control of selective catalytic reduction using machine learning4 Dec 2025US 2025/0369382 A1GE Infrastructure Technology LLC
- System and a method for determining a condition of an ammonia slip catalyst20 Nov 2025US 2025/0354510 A1Volvo Truck Corporation
- Exhaust gas aftertreatment system for an ammonia fueled internal combustion engine4 Sep 2025US 2025/0277466 A1Liebherr-Components Colmar SAS
Most cited
By later US patents
- System and method for NOx reduction optimization48US 7,861,518 B2Cummins Inc. · 2011
- Device and method for denoxing exhaust gas from an internal combustion engine33US 6,637,196 B1Siemens Aktiengesellschaft · 2003
- Aftertreatment systems and methods for treatment of exhaust gas from diesel engine24US 10,690,033 B12020
- Optimized exhaust after-treatment integration21US 8,899,018 B2Cummins Inc. · 2014
- Exhaust emission control device for diesel engines20US 5,894,728 AKomatsu Ltd. · 1999