F02D 2250/08
Engine blow-by from crankcase chamber
F02D2250/08 (Engine blow-by from crankcase chamber) appears on 156 US grants and 176 published applications in this corpus.
Search patents in F02D- Granted patents
- 156
- Published applications
- 176
- Assignees
- 76
- Inventors
- 370
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 4 |
| 2012 | 0 | 3 |
| 2013 | 9 | 9 |
| 2014 | 5 | 18 |
| 2015 | 7 | 13 |
| 2016 | 14 | 11 |
| 2017 | 14 | 17 |
| 2018 | 14 | 14 |
| 2019 | 13 | 16 |
| 2020 | 28 | 23 |
| 2021 | 16 | 4 |
| 2022 | 7 | 7 |
| 2023 | 6 | 4 |
| 2024 | 10 | 11 |
| 2025 | 9 | 9 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Controller for internal combustion engine4 Nov 2025US 12,460,590 B2Toyota Jidosha Kabushiki Kaisha
- Method and device for diagnosing a leakage of a crankcase ventilation line of a crankcase ventilation device for an internal combustion engine14 Oct 2025US 12,442,321 B2Vitesco Technologies GmbH
- System and method for compensating fuel mass based on oil dilution22 Jul 2025US 12,366,214 B1Fca US LLC
- Control Device for Internal Combustion Engine20 Aug 2026US 2026/0243212 A1Hitachi Astemo, Ltd.
- System and control method13 Aug 2026US 2026/0235056 A1Komatsu Ltd.
- System and control method6 Aug 2026US 2026/0226853 A1Komatsu Ltd.
- Internal combustion engine16 Jul 2026US 2026/0201822 A1JCB Research
- Systems and methods for monitoring and controlling crankcase combustible gas concentrations18 Jun 2026US 2026/0168450 A1Caterpillar Inc.
Most cited
By later US patents
- Fuel alcohol content detection via an exhaust gas sensor29US 8,495,996 B2Ford Global Technologies, LLC · 2013
- Deceleration cylinder cut-off25US 9,790,867 B2Tula Technology, Inc. · 2017
- Control device for internal combustion engine and measuring device of mass flow rate of NOx recirculated to intake passage with blowby gas21US 8,469,010 B2Toyota Jidosha Kabushiki Kaisha · 2013
- Control of manifold vacuum in skip fire operation20US 9,273,643 B2Tula Technology, Inc. · 2016
- Humidity and fuel alcohol content estimation17US 8,763,594 B2Ford Global Technologies, LLC · 2014