F02D 9/109
Having two or more flaps
Official title: {having two or more flaps}
F02D9/109 (Having two or more flaps) appears on 356 US grants and 302 published applications in this corpus.
Search patents in F02D- Granted patents
- 356
- Published applications
- 302
- Assignees
- 123
- Inventors
- 644
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 2 |
| 2002 | 9 | 11 |
| 2003 | 9 | 5 |
| 2004 | 5 | 12 |
| 2005 | 10 | 31 |
| 2006 | 29 | 22 |
| 2007 | 28 | 33 |
| 2008 | 21 | 22 |
| 2009 | 19 | 26 |
| 2010 | 10 | 15 |
| 2011 | 25 | 7 |
| 2012 | 9 | 7 |
| 2013 | 8 | 10 |
| 2014 | 6 | 9 |
| 2015 | 6 | 17 |
| 2016 | 7 | 7 |
| 2017 | 12 | 7 |
| 2018 | 11 | 9 |
| 2019 | 16 | 14 |
| 2020 | 7 | 9 |
| 2021 | 11 | 9 |
| 2022 | 6 | 4 |
| 2023 | 5 | 4 |
| 2024 | 3 | 5 |
| 2025 | 7 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engine system25 Aug 2026US 12,716,395 B2Volvo Truck Corporation
- Throttle apparatus for engine3 Mar 2026US 12,565,862 B2Mikuni Corporation
- Electronic fuel injection throttle body assembly23 Sep 2025US 12,421,907 B2Holley Performance Products, Inc.
- Method of controlling a fuel injector12 Aug 2025US 12,385,457 B2Walbro Corporation
- Throttle device22 Jul 2025US 12,366,212 B2Hitachi Astemo, Ltd.
- Engine system29 Jan 2026US 2026/0028951 A1Volvo Truck Corporation
- Electronic fuel injection throttle body assembly1 Jan 2026US 2026/0002479 A1Holley Performance Products, Inc.
- Fuel injection throttle body22 May 2025US 2025/0163874 A1Holley Performance Products, Inc.
- Engine throttle device13 Feb 2025US 2025/0052205 A1Mikuni Corporation
- Electronic fuel injection throttle body assembly16 Jan 2025US 2025/0020083 A1Holley Performance Products, Inc.
Most cited
By later US patents
- Control device for spark-ignition engine45US 6,968,825 B2Mazda Motor Corporation · 2005
- Composite molded butterfly valve for an internal combustion engine44US 5,715,782 AGenral Motors Corporation · 1998
- Induction system for fuel injected engine41US 6,039,029 AYamaha Hatsudoki Kabushiki Kaisha · 2000
- Resin air intake system provided with intake control valve40US 5,875,758 AE. I. Du Pont de Nemours and Company · 1999
- Fuel injection throttle body38US 10,012,197 B2Holley Performance Products, Inc. · 2018