F02D 2250/34
Control of exhaust back pressure
Official title: Control of exhaust back pressure, e.g. for turbocharged engines
F02D2250/34 (Control of exhaust back pressure) appears on 87 US grants and 91 published applications in this corpus.
Search patents in F02D- Granted patents
- 87
- Published applications
- 91
- Assignees
- 46
- Inventors
- 257
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 4 |
| 2012 | 3 | 5 |
| 2013 | 2 | 3 |
| 2014 | 2 | 5 |
| 2015 | 5 | 11 |
| 2016 | 5 | 6 |
| 2017 | 5 | 9 |
| 2018 | 10 | 6 |
| 2019 | 5 | 12 |
| 2020 | 10 | 10 |
| 2021 | 7 | 2 |
| 2022 | 10 | 3 |
| 2023 | 5 | 1 |
| 2024 | 3 | 2 |
| 2025 | 7 | 5 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust vane braking strategy for gasoline engine with variable geometry turbine29 Sep 2026US 12,747,688 B1Fca US LLC
- Internal combustion engine arrangement10 Feb 2026US 12,546,247 B2Volvo Truck Corporation
- Exhaust gas recirculation and aftertreatment control30 Dec 2025US 12,510,036 B2Perkins Engines Company Limited
- Exhaust system for an internal combustion engine16 Sep 2025US 12,416,267 B2Volvo Truck Corporation
- Method for operating an internal combustion engine, and internal combustion engine16 Sep 2025US 12,416,268 B2Robert Bosch GmbH
- Internal combustion engine system19 Jun 2025US 2025/0198358 A1Volvo Truck Corporation
- Turbocharger control device for vehicle and method of estimating base boost pressure by using the same1 May 2025US 2025/0137412 A1Hyundai Motor Company
- Internal combustion engine arrangement27 Feb 2025US 2025/0067208 A1Volvo Truck Corporation
- Exhaust system for an internal combustion engine20 Feb 2025US 2025/0059924 A1Volvo Truck Corporation
- Variable mode engine control30 Jan 2025US 2025/0035058 A1
Most cited
By later US patents
- Turbocharger and EGR system78US 6,263,672 B1BorgWarner Inc. · 2001
- Exhaust back pressure control system39US 5,079,921 ANavistar International Transporation Corp. · 1992
- Turbocharger and EGR system38US 6,089,019 ABorgWarner Inc. · 2000
- Control of a variable geometry turbocharger by sensing exhaust pressure24US 6,418,719 B2International Engine Intellectual Property Company, LLC · 2002
- Engine having active exhaust valve position control system and method13US 9,506,407 B2Polaris Industries Inc. · 2016