F02D 19/0676
Multi-way valves
Official title: {Multi-way valves; Switch-over valves}
F02D19/0676 (Multi-way valves) appears on 90 US grants and 84 published applications in this corpus.
Search patents in F02D- Granted patents
- 90
- Published applications
- 84
- Assignees
- 49
- Inventors
- 160
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 2 | 6 |
| 2008 | 6 | 5 |
| 2009 | 4 | 6 |
| 2010 | 4 | 11 |
| 2011 | 5 | 8 |
| 2012 | 6 | 4 |
| 2013 | 5 | 3 |
| 2014 | 3 | 0 |
| 2015 | 3 | 6 |
| 2016 | 4 | 3 |
| 2017 | 3 | 3 |
| 2018 | 1 | 1 |
| 2019 | 3 | 3 |
| 2020 | 5 | 5 |
| 2021 | 5 | 3 |
| 2022 | 3 | 1 |
| 2023 | 4 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual fuel selector switch8 Sep 2026US 12,729,655 B2Champion Power Equipment, Inc.
- Dual fuel selector switch1 Sep 2026US 12,723,549 B2Champion Power Equipment, Inc.
- Systems and methods for at-cylinder fuel switching27 Jan 2026US 12,535,041 B2Caterpillar Inc.
- Apparatus and method for regulating and injecting gaseous fuel into an internal combustion engine14 Oct 2025US 12,442,337 B2HPDI Technology LP
- Dual fuel system having overflow buffer for hastening fuel switchover15 Jul 2025US 12,359,632 B1Caterpillar Inc.
- Control system for multi-fuel generator set and control method thereof, and generator set17 Sep 2026US 2026/0275924 A1Chongqing Rato Technology Co., Ltd.
- Apparatus and method for regulating and injecting gaseous fuel into an internal combustion engine5 Feb 2026US 2026/0036095 A1Cespira Canada LP
- Multifunctional switch base assembly and control method thereof15 Jan 2026US 2026/0015981 A1Zhejiang Constant Power Machinery Co., Ltd.
- Systems and methods for at-cylinder fuel switching5 Jun 2025US 2025/0179970 A1Caterpillar Inc.
- Dual fuel selector switch22 May 2025US 2025/0163860 A1Champion Power Equipment, Inc.
Most cited
By later US patents
- Fuel blending system method and apparatus134US 5,469,830 ACessna Aircraft Company · 1995
- Fuel supply apparatus for an internal combustion engine128US 6,711,893 B2ExxonMobil Research and Engineering Company · 2004
- Purge system for ethanol direct injection plus gas port fuel injection93US 7,293,552 B2Ford Global Technologies, LLC · 2007
- Apparatus and method for providing an alternative fuel system for engines81US 5,092,305 AGas Research Institute · 1992
- Multiway valve arrangement71US 7,367,352 B2VOSS Automotive GmbH · 2008