F02D 19/0673
Valves
Official title: {Valves; Pressure or flow regulators; Mixers}
F02D19/0673 (Valves) appears on 258 US grants and 240 published applications in this corpus.
Search patents in F02D- Granted patents
- 258
- Published applications
- 240
- Assignees
- 125
- Inventors
- 453
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 4 |
| 2003 | 2 | 1 |
| 2004 | 3 | 3 |
| 2005 | 3 | 4 |
| 2006 | 0 | 4 |
| 2007 | 3 | 7 |
| 2008 | 9 | 8 |
| 2009 | 5 | 9 |
| 2010 | 6 | 15 |
| 2011 | 9 | 13 |
| 2012 | 6 | 4 |
| 2013 | 8 | 11 |
| 2014 | 5 | 9 |
| 2015 | 9 | 13 |
| 2016 | 10 | 16 |
| 2017 | 12 | 14 |
| 2018 | 10 | 9 |
| 2019 | 13 | 18 |
| 2020 | 14 | 10 |
| 2021 | 13 | 10 |
| 2022 | 16 | 7 |
| 2023 | 15 | 16 |
| 2024 | 16 | 7 |
| 2025 | 15 | 16 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- System and method of adding gaseous oxygen additive derived from an oxygen concentrator to diesel fuel to improve combustion21 Jul 2026US 12,687,143 B2H2Diesel, Inc.
- Engine system and method for determining fuel characteristics12 May 2026US 12,624,668 B2Caterpillar Inc.
- Apparatus and method for regulating gaseous fuel pressure and mitigating emissions in an internal combustion engine system7 Apr 2026US 12,595,772 B2Cespira Canada LP
- Multi-fuel engine system and method for controlling same8 Oct 2026US 2026/0309102 A1Hd Hyundai Heavy Industries Co., Ltd.
- Control system for multi-fuel generator set and control method thereof, and generator set17 Sep 2026US 2026/0275924 A1Chongqing Rato Technology Co., Ltd.
- System and method of adding gaseous oxygen additive derived from an oxygen concentrator to diesel fuel to improve combustion11 Jun 2026US 2026/0160223 A1H2Diesel, Inc.
- Internal combustion engine21 May 2026US 2026/0139636 A1Toyota Jidosha Kabushiki Kaisha
- Movable body and maintenance method14 May 2026US 2026/0131766 A1Kawasaki Motors, Ltd.
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
- Fuel control system79US 4,641,625 AIndustrial Trade Exchange, Inc. · 1987