F01N 2610/1473
Overflow or return means for the substances
Official title: Overflow or return means for the substances, e.g. conduits or valves for the return path
F01N2610/1473 (Overflow or return means for the substances) appears on 180 US grants and 201 published applications in this corpus.
Search patents in F01N- Granted patents
- 180
- Published applications
- 201
- Assignees
- 103
- Inventors
- 440
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 4 |
| 2005 | 3 | 3 |
| 2006 | 2 | 2 |
| 2007 | 1 | 8 |
| 2008 | 1 | 9 |
| 2009 | 4 | 13 |
| 2010 | 8 | 17 |
| 2011 | 8 | 16 |
| 2012 | 12 | 6 |
| 2013 | 10 | 22 |
| 2014 | 11 | 14 |
| 2015 | 21 | 15 |
| 2016 | 14 | 11 |
| 2017 | 17 | 14 |
| 2018 | 3 | 9 |
| 2019 | 16 | 11 |
| 2020 | 10 | 7 |
| 2021 | 11 | 7 |
| 2022 | 5 | 3 |
| 2023 | 4 | 3 |
| 2024 | 4 | 3 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reducing agent supply device, method for controlling reducing agent supply device, and control device14 Jul 2026US 12,680,487 B2Komatsu Ltd.
- Conditioning system for a urea solution24 Mar 2026US 12,584,431 B2Errecinque S.R.L.
- Urea pump, and control method and control system for urea pump26 Nov 2024US 12,152,520 B2Weichai Power Co., Ltd.
- Integrated grommet filter25 Jun 2024US 12,018,606 B1Caterpillar Inc.
- Fluid injector, assembly and exhaust line comprising such an injector26 Mar 2024US 11,938,447 B2Faurecia Systemes D'Echappement
- Reducing agent supply device, method for controlling reducing agent supply device, and control device13 Nov 2025US 2025/0347241 A1Komatsu Ltd.
- Conditioning system for a urea solution17 Oct 2024US 2024/0344474 A1Errecinque S.R.L.
- Emissions control system19 Sep 2024US 2024/0309788 A1Generac Power Systems, Inc.
- Urea pump, and control method and control system for urea pump18 Apr 2024US 2024/0125262 A1Weichai Power Co., Ltd.
- Wet inline scrubber with a side inlet for reducing the amount of sox in an exhaust gas produced by one or more engines of a marine vessel8 Jun 2023US 2023/0173431 A1Yara Marine Technologies AS
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
- Metering system105US 6,539,708 B1Siemens Aktiengesellscahft · 2003
- System for fueling and feeding chemicals to internal combustion engines for NO.sub.x reduction97US 5,809,774 AClean Diesel Technologies, Inc. · 1998
- Mixture delivery device for internal combustion engines76US 6,041,594 ARobert Bosch GmbH · 2000