F02D 41/004
Control of the valve or purge actuator
Official title: {Control of the valve or purge actuator, e.g. duty cycle, closed loop control of position}
F02D41/004 (Control of the valve or purge actuator) appears on 338 US grants and 295 published applications in this corpus.
Search patents in F02D- Granted patents
- 338
- Published applications
- 295
- Assignees
- 82
- Inventors
- 495
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 4 |
| 2004 | 4 | 5 |
| 2005 | 1 | 0 |
| 2006 | 2 | 3 |
| 2007 | 2 | 1 |
| 2008 | 2 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 3 | 6 |
| 2014 | 2 | 10 |
| 2015 | 6 | 23 |
| 2016 | 16 | 29 |
| 2017 | 37 | 28 |
| 2018 | 24 | 31 |
| 2019 | 29 | 35 |
| 2020 | 36 | 44 |
| 2021 | 52 | 25 |
| 2022 | 23 | 15 |
| 2023 | 21 | 11 |
| 2024 | 8 | 8 |
| 2025 | 8 | 2 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Purge valve control method and control device of evaporated fuel processing device6 Oct 2026US 12,753,728 B2Nissan Motor Co., Ltd.
- Flexible fluid connection for evaporative emissions system12 May 2026US 12,624,674 B2Stoneridge Control Devices, Inc.
- Apparatus and method for controlling fuel system of vehicle6 Jan 2026US 12,516,641 B2Hyundai Motor Company
- Purge valve driving control device3 Jun 2025US 12,322,544 B2Bosch Corporation
- Systems and methods for a fuel refill pressure relief valve20 May 2025US 12,305,776 B2Ford Global Technologies, LLC
- Purge valve control method and control device of evaporated fuel processing device16 Jul 2026US 2026/0201847 A1Nissan Motor Co., Ltd.
- Evaporative-emission-control system and straddled vehicle equipped with evaporative-emission-control system4 Jun 2026US 2026/0153059 A1Yamaha Hatsudoki Kabushiki Kaisha
- Vehicle28 May 2026US 2026/0146570 A1Subaru Corporation
- Locating a fuel leak in a fuel system30 Apr 2026US 2026/0117730 A1OPmobility C-Power Belgium Research
- Sealed tank system26 Mar 2026US 2026/0085645 A1Aisan Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Vaporized fuel control apparatus for internal combustion engines89US 4,817,576 ANippondenso Co., Ltd. · 1989
- Fuel vapor purging control system for automotive vehicle65US 5,273,020 ANippondenso Co., Ltd. · 1993
- Fuel vapor recovery control system37US 5,054,454 AFord Motor Company · 1991
- Systems and methods for reducing vehicle valve degradation35US 10,550,776 B1Ford Global Technologies, LLC · 2020
- Fuel supply control device of an engine35US 5,216,997 AToyota Jidosha Kabushiki Kaisha · 1993