F01N 2900/1814
Tank level
F01N2900/1814 (Tank level) appears on 213 US grants and 248 published applications in this corpus.
Search patents in F01N- Granted patents
- 213
- Published applications
- 248
- Assignees
- 118
- Inventors
- 519
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 4 |
| 2006 | 0 | 1 |
| 2007 | 1 | 10 |
| 2008 | 1 | 9 |
| 2009 | 2 | 10 |
| 2010 | 3 | 19 |
| 2011 | 13 | 10 |
| 2012 | 10 | 18 |
| 2013 | 13 | 15 |
| 2014 | 10 | 18 |
| 2015 | 12 | 18 |
| 2016 | 21 | 22 |
| 2017 | 17 | 14 |
| 2018 | 20 | 20 |
| 2019 | 18 | 10 |
| 2020 | 16 | 14 |
| 2021 | 14 | 10 |
| 2022 | 13 | 8 |
| 2023 | 7 | 8 |
| 2024 | 8 | 2 |
| 2025 | 5 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Planetary gear system arrangement with auxiliary oil system30 Sep 2025US 12,428,975 B2Rtx Corporation
- Urea sender unit15 Jul 2025US 12,359,599 B2Errencinque S.R.L.
- Method for controlling at least a part of an exhaust after treatment system of a vehicle1 Jul 2025US 12,345,192 B2Volvo Truck Corporation
- Conveying device with filter element10 Jun 2025US 12,326,106 B2Vitesco Technologies GmbH
- Method for heating a tank15 Apr 2025US 12,279,341 B2Vitesco Technologies GmbH
- Pressurized systems and methods for providing a nebulized catalyst8 Oct 2026US 2026/0309066 A1Jake Vernon LLC
- Liquid level detecting device5 Mar 2026US 2026/0063462 A1Hitachi Construction Machinery Co., Ltd.
- Improved urea sender unit5 Jun 2025US 2025/0179953 A1Errencinque S.R.L.
- Method for controlling at least a part of an exhaust after treatment system of a vehicle22 May 2025US 2025/0163839 A1Volvo Truck Corporation
- Method and apparatus for monitoring a thermal degradation of a reducing solution20 Feb 2025US 2025/0061754 A1Errecinque S.R.L.
Most cited
By later US patents
- Reducing no.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction171US 6,063,350 AClean Diesel Technologies, Inc. · 2000
- Reducing NO.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction120US 5,976,475 AClean Diesel Technologies, Inc. · 1999
- Emission control system75US 6,269,633 B1Ford Global Technologies, LLC · 2001
- Method and device for operating an internal combustion engine with low nitrogen oxide emissions68US 5,845,487 ADaimler-Benz Aktiengesellschaft · 1998
- Cleaning exhaust gases from combustion installations52US 5,601,792 A1997