F02M 61/205
Means specially adapted for varying the spring tension or assisting the spring
Official title: {Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift}
F02M61/205 (Means specially adapted for varying the spring tension or assisting the spring) appears on 286 US grants and 170 published applications in this corpus.
Search patents in F02M- Granted patents
- 286
- Published applications
- 170
- Assignees
- 90
- Inventors
- 457
- Latest grant
- 11 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 5 |
| 2002 | 7 | 12 |
| 2003 | 15 | 25 |
| 2004 | 20 | 25 |
| 2005 | 13 | 14 |
| 2006 | 17 | 17 |
| 2007 | 12 | 11 |
| 2008 | 4 | 8 |
| 2009 | 5 | 6 |
| 2010 | 4 | 8 |
| 2011 | 5 | 3 |
| 2012 | 2 | 4 |
| 2013 | 4 | 3 |
| 2014 | 3 | 2 |
| 2015 | 3 | 4 |
| 2016 | 4 | 5 |
| 2017 | 3 | 6 |
| 2018 | 3 | 4 |
| 2019 | 6 | 3 |
| 2020 | 3 | 1 |
| 2021 | 0 | 0 |
| 2022 | 4 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel injector for fuel system having damping adjustment valve11 Jul 2023US 11,698,043 B1Caterpillar Inc.
- High pressure fuel pump with mechanical pressure regulation4 Oct 2022US 11,459,988 B2Stanadyne, Inc.
- Valve for metering a fluid14 Jun 2022US 11,359,589 B2Robert Bosch GmbH
- Method for producing a metering valve, and metering valve22 Mar 2022US 11,280,297 B2Robert Bosch GmbH
- Surge relief valve11 Jan 2022US 11,221,083 B2DeZURIK, Inc.
- Electromagnetic fuel injection valve30 Apr 2026US 2026/0117732 A1Hitachi Astemo, Ltd.
- Injector with integrated filter18 Apr 2024US 2024/0125292 A1
- Fuel injection valve18 Apr 2024US 2024/0125294 A1
- High pressure fuel pump with mechanical pressure regulation20 Jan 2022US 2022/0018322 A1Stanadyne, Inc.
- Method for producing a metering valve, and metering valve4 Jun 2020US 2020/0173397 A1Robert Bosch GmbH
Most cited
By later US patents
- Electromagnetically operated injection valve with a fuel filter that sets a spring force68US 5,340,032 ARobert Bosch GmbH · 1994
- Fluid control valves65US 4,183,467 ALucas Industries Limited · 1980
- Fuel injector system with feed-back control63US 5,722,373 A1998
- Fuel injector for an engine53US 4,909,440 AToyota Jidosha Kabushiki Kaisha · 1990
- Electronic fuel injection control system for fuel injection valves50US 4,359,032 ADiesel Kiki Co., Ltd. · 1982