F02M 26/59
Using positive pressure actuators
Official title: using positive pressure actuators; Check valves therefor
F02M26/59 (Using positive pressure actuators) appears on 174 US grants and 59 published applications in this corpus.
Search patents in F02M- Granted patents
- 174
- Published applications
- 59
- Assignees
- 88
- Inventors
- 374
- Latest grant
- 28 Dec 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 5 | 0 |
| 1980 | 10 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 3 |
| 2003 | 8 | 4 |
| 2004 | 3 | 1 |
| 2005 | 5 | 5 |
| 2006 | 1 | 2 |
| 2007 | 2 | 11 |
| 2008 | 5 | 5 |
| 2009 | 2 | 4 |
| 2010 | 2 | 3 |
| 2011 | 6 | 3 |
| 2012 | 3 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 4 | 1 |
| 2016 | 0 | 2 |
| 2017 | 2 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Detection and control of intake system noise during low pressure exhaust gas recirculation operation28 Dec 2021US 11,208,972 B2
- Valve assembly and method of cooling29 Jun 2021US 11,047,506 B2Aventics GmbH
- Pressure measurement apparatus for an engine10 Nov 2020US 10,830,190 B2Ford Global Technologies, LLC
- Traction control system for electric multiple units19 Nov 2019US 10,480,551 B2Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd.
- Valve assembly and method of cooling11 Sep 2018US 10,072,773 B2Aventics GmbH
- Exhaust gas recirculation circuit for improved particle filter regeneration20 Aug 2026US 2026/0243219 A1Volvo Truck Corporation
- Valve device4 Aug 2022US 2022/0243688 A1ElringKlinger AG
- Detection and control of intake system noise during low pressure exhaust gas recirculation operation10 Jun 2021US 2021/0172403 A1
- Valve assembly and method of cooling8 Apr 2021US 2021/0102640 A9Aventics GmbH
- Exhaust system with exhaust gas heat recovery assembly and method for operation of the exhaust system17 Sep 2020US 2020/0291905 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Integral turbine exhaust gas recirculation control valve75US 6,032,465 AAlliedSignal Inc. · 2000
- Exhaust gas recirculation system for simultaneously reducing NO.sub.x and particulate matter66US 5,806,308 ASouthwest Research Institute · 1998
- Exhaust gas recirculation system for an internal combustion engine65US 5,802,846 ACaterpillar Inc. · 1998
- Exhaust gas recirculation system65US 6,216,458 B1Caterpillar Inc. · 2001