F02M 65/00
Testing fuel-injection apparatus
Official title: Testing fuel-injection apparatus, e.g. testing injection timing {(testing of ignition F02P17/00; measuring fuel consumption G01F9/00); Cleaning of fuel-injection apparatus}
F02M65/00 (Testing fuel-injection apparatus) appears on 811 US grants and 572 published applications in this corpus.
Search patents in F02M- Granted patents
- 811
- Published applications
- 572
- Assignees
- 279
- Inventors
- 1,649
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 13 | 0 |
| 1981 | 7 | 0 |
| 1982 | 18 | 0 |
| 1983 | 16 | 0 |
| 1984 | 16 | 0 |
| 1985 | 17 | 0 |
| 1986 | 13 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 8 | 0 |
| 1994 | 12 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 11 | 0 |
| 1998 | 20 | 0 |
| 1999 | 13 | 0 |
| 2000 | 14 | 0 |
| 2001 | 17 | 5 |
| 2002 | 9 | 10 |
| 2003 | 23 | 32 |
| 2004 | 20 | 27 |
| 2005 | 21 | 24 |
| 2006 | 23 | 16 |
| 2007 | 16 | 24 |
| 2008 | 23 | 26 |
| 2009 | 16 | 21 |
| 2010 | 11 | 14 |
| 2011 | 15 | 10 |
| 2012 | 10 | 18 |
| 2013 | 12 | 32 |
| 2014 | 14 | 32 |
| 2015 | 25 | 40 |
| 2016 | 34 | 33 |
| 2017 | 33 | 32 |
| 2018 | 38 | 38 |
| 2019 | 38 | 33 |
| 2020 | 36 | 31 |
| 2021 | 31 | 16 |
| 2022 | 20 | 19 |
| 2023 | 19 | 12 |
| 2024 | 12 | 10 |
| 2025 | 6 | 9 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 65/005Measuring or detecting injection-valve lift153
- F02M 65/001Measuring fuel delivery of a fuel injector134
- F02M 65/003Measuring variation of fuel pressure in high pressure line122
- F02M 65/007Cleaning121
- F02M 65/006Measuring or detecting fuel leakage of fuel injection apparatus65
- F02M 65/002Measuring fuel delivery of multi-cylinder injection pumps31
Recent patents
- Destructive joint testing of medium filled port fuel injection rails15 Sep 2026US 12,736,022 B2Robert Bosch GmbH
- Gaseous fuel injector diagnostics1 Sep 2026US 12,723,553 B1Cummins Inc.
- High pressure common rail system failure detection25 Aug 2026US 12,716,396 B2Progress Rail Locomotive Inc.
- Fuel pressure accumulating device11 Aug 2026US 12,704,104 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Plasma electrolytic polished diesel engine components21 Apr 2026US 12,606,930 B2Cummins Inc.
- Fuel leakage diagnostic and fuel system diagnostic management apparatuses, methods, and systems1 Oct 2026US 2026/0298171 A1Cummins-Scania HPCR System, LLC
- Additive composition for common rail diesel engine fuel17 Sep 2026US 2026/0275949 A1YUKA SANGYO CO., LTD. and
- Destructive joint testing of medium filled port fuel injection rails3 Sep 2026US 2026/0258772 A1Robert Bosch GmbH
- Fuel pump diagnostic apparatuses, methods, and systems13 Aug 2026US 2026/0235098 A1Cummins Inc.
- Fuel system2 Jul 2026US 2026/0185499 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
Most cited
By later US patents
- Flow meter567US 6,874,480 B1Combustion Dynamics Corp. · 2005
- Automatic fuel system cleaner90US 6,715,502 B1Motorvac Technologies, Inc. · 2004
- Internal combustion engine with on-board diagnostic system for detecting impaired fuel injectors83US 5,445,019 AFord Motor Company · 1995
- Position sensor for fuel injection apparatus73US 4,614,111 A1986
- Method and apparatus for accurately determining opening and closing times for automotive fuel injectors70US 5,747,684 ASiemens Automotive Corporation · 1998