F02B 27/0273
Flap valves
Official title: {Flap valves}
F02B27/0273 (Flap valves) appears on 221 US grants and 105 published applications in this corpus.
Search patents in F02B- Granted patents
- 221
- Published applications
- 105
- Assignees
- 79
- Inventors
- 448
- Latest grant
- 29 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 12 | 0 |
| 1990 | 9 | 0 |
| 1991 | 15 | 0 |
| 1992 | 11 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 10 | 11 |
| 2003 | 5 | 8 |
| 2004 | 13 | 5 |
| 2005 | 2 | 14 |
| 2006 | 15 | 12 |
| 2007 | 13 | 9 |
| 2008 | 5 | 7 |
| 2009 | 2 | 5 |
| 2010 | 4 | 6 |
| 2011 | 4 | 2 |
| 2012 | 4 | 1 |
| 2013 | 1 | 3 |
| 2014 | 3 | 2 |
| 2015 | 2 | 9 |
| 2016 | 3 | 1 |
| 2017 | 5 | 2 |
| 2018 | 2 | 1 |
| 2019 | 3 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Internal combustion engine system operable in at least two operating modes29 Nov 2022US 11,512,672 B2Volvo Truck Corporation
- Variable intake system for vehicle17 May 2022US 11,333,110 B2Hyundai Motor Company
- Intake manifold15 Jun 2021US 11,035,328 B1Hyundai Motor Company
- Fresh air supply device for an internal combustion engine of a motor vehicle11 Feb 2020US 10,557,420 B2Mahle International GmbH
- Air intake device and air intake control valve16 Jul 2019US 10,352,252 B2Aisin Seiki Kabushiki Kaisha
- Internal combustion engine system operable in at least two operating modes27 Oct 2022US 2022/0341379 A1Volvo Truck Corporation
- Variable intake system for vehicle23 Sep 2021US 2021/0293207 A1Hyundai Motor Company
- Intake manifold17 Jun 2021US 2021/0180548 A1Hyundai Motor Company
- Fresh air supply device for an internal combustion engine of a motor vehicle14 Nov 2019US 2019/0345877 A1Mahle International GmbH
- Fresh air supply system for an internal combustion engine of a motor vehicle31 Jan 2019US 2019/0032610 A1Mahle International GmbH
Most cited
By later US patents
- Integrated air intake system51US 5,477,819 AFilterwerk Mann & Hummel GmbH · 1995
- V-type multiple-cylinder air intake device46US 7,004,137 B2Nissan Motors Co., Ltd. · 2006
- One-piece wave deflector for I.C. engine intake system37US 4,907,547 ASiemens-Bendix Automotive Electronics L. P. · 1990
- Supercharging apparatus for use in an internal combustion engine35US 5,427,078 AMazda Motor Corporation · 1995
- Fuel control and feed system for gas fueled engine34US 5,337,722 AYamaha Hatsudoki Kabushiki Kaisha · 1994