F02B 27/0231
Movable ducts, walls or the like
Official title: {Movable ducts, walls or the like (F02B27/0257 takes precedence)}
F02B27/0231 (Movable ducts, walls or the like) appears on 78 US grants and 50 published applications in this corpus.
Search patents in F02B- Granted patents
- 78
- Published applications
- 50
- Assignees
- 32
- Inventors
- 128
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 2 |
| 2003 | 3 | 4 |
| 2004 | 0 | 2 |
| 2005 | 0 | 4 |
| 2006 | 8 | 3 |
| 2007 | 4 | 7 |
| 2008 | 3 | 12 |
| 2009 | 5 | 4 |
| 2010 | 7 | 4 |
| 2011 | 3 | 1 |
| 2012 | 4 | 0 |
| 2013 | 3 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Convertible silencer15 Jul 2025US 12,359,594 B2Discovery Energy, LLC
- System and method for air-fuel mixture formation in an internal combustion engine28 Aug 2018US 10,060,384 B2Ford Global Technologies, LLC
- Air trap variable manifold runners8 Mar 2016US 9,279,399 B2Ford Global Technologies, LLC
- Vehicle including a variable intake pipe length device19 Nov 2013US 8,584,645 B2Honda Motor Co., Ltd.
- Telescopic intake runner system24 Sep 2013US 8,539,924 B2
- Variable air funnel apparatus1 Oct 2026US 2026/0298133 A1Honda Motor Co., Ltd.
- Convertible silencer25 Dec 2025US 2025/0389215 A1Discovery Energy, LLC
- Convertible silencer6 Feb 2025US 2025/0043706 A1Discovery Energy, LLC
- Variable engine-inlet bypass control systems and method20 Oct 2022US 2022/0333562 A1Bell Textron Inc.
- System and method for air-fuel mixture formation in an internal combustion engine22 Dec 2016US 2016/0369738 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Intake device for an internal combustion engine43US 4,890,586 AHonda Giken Kogyo Kabushiki Kaisha · 1990
- Air intake device42US 7,275,512 B2Siemens Aktiengesellschaft · 2007
- Intake control system for engine31US 5,775,283 AYamaha Hatsudoki Kabushiki Kaisha · 1998
- Tuneable intake manifold29US 4,210,107 A1980
- Split plenum intake manifold with variable runners23US 5,762,036 AFord Global Technologies, LLC · 1998