F02D 2009/0269
Throttle closing springs
Official title: {Throttle closing springs; Acting of throttle closing springs on the throttle shaft}
F02D2009/0269 (Throttle closing springs) appears on 89 US grants and 55 published applications in this corpus.
Search patents in F02D- Granted patents
- 89
- Published applications
- 55
- Assignees
- 48
- Inventors
- 176
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 7 | 3 |
| 2003 | 3 | 5 |
| 2004 | 3 | 5 |
| 2005 | 5 | 4 |
| 2006 | 5 | 4 |
| 2007 | 5 | 2 |
| 2008 | 2 | 2 |
| 2009 | 3 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 3 |
| 2017 | 4 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 0 | 4 |
| 2021 | 3 | 2 |
| 2022 | 5 | 3 |
| 2023 | 2 | 4 |
| 2024 | 4 | 3 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Throttle device28 Oct 2025US 12,454,921 B2Aisan Kogyo Kabushiki Kaisha
- Valve device3 Jun 2025US 12,320,311 B2Mikuni Corporation
- Powered vehicle14 Jan 2025US 12,194,843 B2Polaris Industries Inc.
- Throttle device24 Sep 2024US 12,098,689 B2Aisan Kogyo Kabushiki Kaisha
- Throttle valve device and method for manufacturing the same17 Sep 2024US 12,092,223 B2Denso Corporation
- Throttle Device27 Jun 2024US 2024/0209803 A1Aisan Kogyo Kabushiki Kaisha
- Valve device11 Apr 2024US 2024/0117774 A1Mikuni Corporation
- Throttle Device8 Feb 2024US 2024/0044295 A1Aisan Kogyo Kabushiki Kaisha
- Throttle valve device and method for manufacturing the same14 Dec 2023US 2023/0400103 A1Denso Corporation
- Engine, an Aircraft, and a Throttle Thereof20 Jul 2023US 2023/0228222 A1Autoflight (Kunshan) Co., Ltd.
Most cited
By later US patents
- Throttle body default actuation46US 5,492,097 AGeneral Motors Corporation · 1996
- Throttle valve controller for internal combustion engine34US 5,297,521 AHitachi, Ltd. · 1994
- Electronic throttle control system33US 6,070,852 AFord Motor Company · 2000
- Electronically controlled throttle device26US 6,725,833 B1Hitachi Car Engineering Co., Ltd. · 2004
- Throttle valve device24US 5,752,484 AAB Elektronik GmbH · 1998