F02D 2250/36
Control for minimising nox emissions
Official title: Control for minimising NOx emissions
F02D2250/36 (Control for minimising nox emissions) appears on 267 US grants and 285 published applications in this corpus.
Search patents in F02D- Granted patents
- 267
- Published applications
- 285
- Assignees
- 128
- Inventors
- 739
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 7 | 6 |
| 2003 | 6 | 13 |
| 2004 | 8 | 13 |
| 2005 | 9 | 4 |
| 2006 | 6 | 9 |
| 2007 | 11 | 8 |
| 2008 | 2 | 8 |
| 2009 | 1 | 6 |
| 2010 | 5 | 16 |
| 2011 | 4 | 8 |
| 2012 | 10 | 5 |
| 2013 | 10 | 20 |
| 2014 | 10 | 8 |
| 2015 | 9 | 17 |
| 2016 | 18 | 21 |
| 2017 | 11 | 11 |
| 2018 | 18 | 29 |
| 2019 | 21 | 19 |
| 2020 | 29 | 16 |
| 2021 | 16 | 5 |
| 2022 | 12 | 10 |
| 2023 | 3 | 7 |
| 2024 | 14 | 9 |
| 2025 | 9 | 9 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems including a hydrogen internal combustion engine and aftertreatment system1 Sep 2026US 12,723,528 B2Cummins Emission Solutions Inc.
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- Method and system for controlling diesel engine emissions by fuel blending30 Jun 2026US 12,669,097 B2Clear Torque, LLC
- Method of controlling internal combustion engine, control arrangement, internal combustion engine, and vehicle23 Jun 2026US 12,662,975 B2Scania CV AB
- Method for operating an internal combustion engine28 Apr 2026US 12,612,879 B2Innio Jenbacher GmbH & Co OG
- Multi-fuel engines and controls using hydrogen fuel substitution10 Sep 2026US 2026/0266232 A1Cummins Inc.
- System and method for adaptive control of ammonia-nox ratio18 Jun 2026US 2026/0168418 A1Caterpillar Inc.
- System and method for adaptive control of air-to-fuel ratio18 Jun 2026US 2026/0168452 A1Caterpillar Inc.
- Method of operating a hybrid ammonia-diesel compression ignition propulsion system and/or power generation system and controlling the power output and emissions thereof14 May 2026US 2026/0132750 A1Analytical Engineering, Inc.
- Controller for vehicle14 May 2026US 2026/0132751 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Apparatus and method for internal-combustion engine control121US 5,595,060 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Control methods for low emission internal combustion system86US 7,681,394 B2The United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 2010
- Emission control system75US 6,269,633 B1Ford Global Technologies, LLC · 2001
- High compression ratio, hydrogen enhanced gasoline engine system62US 6,655,324 B2Massachusetts Institute of Technology · 2003
- Method and apparatus for controlling the amount of reactant to be added to a substance using a sensor which is responsive to both the reactant and the substance59US 6,546,720 B2Ford Global Technologies, LLC · 2003