F02M 57/022
Characterised by the pump drive
Official title: {characterised by the pump drive}
F02M57/022 (Characterised by the pump drive) appears on 1,046 US grants and 580 published applications in this corpus.
Search patents in F02M- Granted patents
- 1,046
- Published applications
- 580
- Assignees
- 191
- Inventors
- 1,262
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 13 | 0 |
| 1982 | 6 | 0 |
| 1983 | 19 | 0 |
| 1984 | 21 | 0 |
| 1985 | 16 | 0 |
| 1986 | 13 | 0 |
| 1987 | 11 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 14 | 0 |
| 1992 | 7 | 0 |
| 1993 | 13 | 0 |
| 1994 | 25 | 0 |
| 1995 | 29 | 0 |
| 1996 | 33 | 0 |
| 1997 | 33 | 0 |
| 1998 | 38 | 0 |
| 1999 | 46 | 0 |
| 2000 | 52 | 0 |
| 2001 | 57 | 11 |
| 2002 | 61 | 47 |
| 2003 | 55 | 66 |
| 2004 | 59 | 99 |
| 2005 | 66 | 51 |
| 2006 | 44 | 50 |
| 2007 | 36 | 33 |
| 2008 | 21 | 27 |
| 2009 | 24 | 25 |
| 2010 | 18 | 22 |
| 2011 | 12 | 15 |
| 2012 | 12 | 15 |
| 2013 | 13 | 13 |
| 2014 | 12 | 9 |
| 2015 | 9 | 13 |
| 2016 | 17 | 10 |
| 2017 | 3 | 8 |
| 2018 | 8 | 12 |
| 2019 | 12 | 14 |
| 2020 | 17 | 17 |
| 2021 | 14 | 7 |
| 2022 | 10 | 4 |
| 2023 | 7 | 4 |
| 2024 | 2 | 1 |
| 2025 | 4 | 1 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Asymmetric fuel injection window and fuel metering window17 Mar 2026US 12,577,918 B2Caterpillar Inc.
- Fuel injector control strategy using fuel bulk modulus for fuel injector command determination13 Jan 2026US 12,523,182 B2Caterpillar Inc.
- Dual fuel system having dual fuel injector and engine operating method9 Dec 2025US 12,492,670 B2Caterpillar Inc.
- Method and apparatus for limiting acidic corrosion and contamination in fuel delivery systems14 Oct 2025US 12,441,600 B2Franklin Fueling Systems, Inc.
- Multi-function fuel injector valve in dual fuel system and fuel system operating method13 May 2025US 12,297,795 B1Caterpillar Inc.
- Hydraulically driven fluid injection system26 Mar 2026US 2026/0085652 A1Hamilton Sundstrand Corporation
- Dual fuel system having dual fuel injector and engine operating method12 Feb 2026US 2026/0043381 A1Caterpillar Inc.
- Dual fuel system having dual fuel injector and engine operating method12 Feb 2026US 2026/0043382 A1Caterpillar Inc.
- Asymmetric fuel injection window and fuel metering window22 Jan 2026US 2026/0022673 A1Caterpillar Inc.
- System and method for adjusting fuel injector commands22 Jan 2026US 2026/0022675 A1Caterpillar Inc.
Most cited
By later US patents
- Priming reservoir and volume compensation device for hydraulic unit injector fuel system168US 5,245,970 ANavistar International Transportation Corp. · 1993
- Engine having a high pressure hydraulic system and low pressure lubricating system131US 6,067,962 ACaterpillar Inc. · 2000
- Hydraulically-actuated electronically-controlled unit injector fuel system having variable control of actuating fluid pressure125US 5,191,867 ACaterpillar Inc. · 1993
- High speed fuel injector106US 5,460,329 A1995
- Exhaust gas purification device for an internal combustion engine105US 5,732,554 AToyota Jidosha Kabushiki Kaisha · 1998