F01N 2900/1402
Exhaust gas composition
F01N2900/1402 (Exhaust gas composition) appears on 808 US grants and 933 published applications in this corpus.
Search patents in F01N- Granted patents
- 808
- Published applications
- 933
- Assignees
- 179
- Inventors
- 1,567
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 1 |
| 2004 | 3 | 4 |
| 2005 | 3 | 9 |
| 2006 | 5 | 3 |
| 2007 | 2 | 3 |
| 2008 | 1 | 7 |
| 2009 | 6 | 14 |
| 2010 | 5 | 37 |
| 2011 | 8 | 35 |
| 2012 | 27 | 42 |
| 2013 | 33 | 51 |
| 2014 | 50 | 40 |
| 2015 | 40 | 67 |
| 2016 | 51 | 80 |
| 2017 | 63 | 76 |
| 2018 | 67 | 84 |
| 2019 | 92 | 71 |
| 2020 | 72 | 82 |
| 2021 | 75 | 61 |
| 2022 | 64 | 46 |
| 2023 | 47 | 40 |
| 2024 | 42 | 34 |
| 2025 | 32 | 20 |
| 2026 | 13 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for lambda control of spark-ignition engines, and motor vehicle29 Sep 2026US 12,747,711 B2Schaeffler Technologies AG & Co. KG
- Work vehicle and aftertreatment system therefor25 Aug 2026US 12,716,375 B2Deere & Company
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- System and method for adaptive control of ammonia-NOx ratio28 Jul 2026US 12,692,810 B2Caterpillar Inc.
- Performance enhancement of a platinum-containing catalyst via exhaust gas hydrogen enrichment16 Jun 2026US 12,654,160 B2BASF Mobile Emissions Catalysts LLC
- Containerized ultra-low nox diesel engine generator set with roof-mounted selective catalytic reduction system8 Oct 2026US 2026/0309075 A1Industrial Service Solutions WC, Inc.
- Compression ignition engine and system utilizing ammonia as a fuel source24 Sep 2026US 2026/0286881 A1Analytical Engineering, Inc.
- Exhaust system3 Sep 2026US 2026/0258744 A1Isuzu Motors Limited
- Exhaust monitoring apparatus and exhaust monitoring method27 Aug 2026US 2026/0251083 A1Toyota Jidosha Kabushiki Kaisha
- Work vehicle and aftertreatment system therefor6 Aug 2026US 2026/0226857 A1Deere & Company
Most cited
By later US patents
- Control system for mobile NOx SCR applications125US 6,415,602 B1Engelhard Corporation · 2002
- NOx emission-control system using a virtual sensor122US 6,882,929 B2Caterpillar Inc. · 2005
- Method for determining catalyst cool down temperature106US 6,742,330 B2Engelhard Corporation · 2004
- Exhaust gas aftertreatment systems71US 7,093,427 B2Ford Global Technologies, LLC · 2006
- Control system for mobile NOx SCR applications64US 6,662,553 B2Engelhard Corporation · 2003