F02M 45/04
With a small initial part
Official title: with a small initial part {, e.g. initial part for partial load and initial and main part for full load}
F02M45/04 (With a small initial part) appears on 717 US grants and 438 published applications in this corpus.
Search patents in F02M- Granted patents
- 717
- Published applications
- 438
- Assignees
- 158
- Inventors
- 1,015
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 10 | 0 |
| 1980 | 11 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 13 | 0 |
| 1986 | 10 | 0 |
| 1987 | 17 | 0 |
| 1988 | 11 | 0 |
| 1989 | 22 | 0 |
| 1990 | 13 | 0 |
| 1991 | 16 | 0 |
| 1992 | 14 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 12 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 21 | 0 |
| 1999 | 27 | 0 |
| 2000 | 22 | 0 |
| 2001 | 19 | 7 |
| 2002 | 30 | 29 |
| 2003 | 43 | 45 |
| 2004 | 41 | 50 |
| 2005 | 47 | 38 |
| 2006 | 26 | 41 |
| 2007 | 23 | 32 |
| 2008 | 16 | 9 |
| 2009 | 15 | 13 |
| 2010 | 5 | 16 |
| 2011 | 13 | 8 |
| 2012 | 3 | 11 |
| 2013 | 10 | 18 |
| 2014 | 6 | 20 |
| 2015 | 17 | 15 |
| 2016 | 14 | 18 |
| 2017 | 19 | 12 |
| 2018 | 10 | 8 |
| 2019 | 15 | 10 |
| 2020 | 8 | 8 |
| 2021 | 12 | 7 |
| 2022 | 6 | 1 |
| 2023 | 3 | 2 |
| 2024 | 6 | 5 |
| 2025 | 2 | 8 |
| 2026 | 2 | 7 |
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 and operating strategy metering fuel via varied fuel pump output2 Dec 2025US 12,486,809 B2Caterpillar Inc.
- Proportional force modification of passive spool for control of secondary nozzle circuits27 May 2025US 12,313,004 B2Collins Engine Nozzles, Inc.
- Fuel injector in an engine having spray orifice set configured for offset positioning and engine operating method8 Oct 2024US 12,110,851 B2Caterpillar Inc.
- Turbulent jet controlled diffusion combustion engine23 Jul 2026US 2026/0210283 A1Aramco Services Company
- Dual fuel injector for injection control and fuel metering, and method for operating same7 May 2026US 2026/0126025 A1Caterpillar Inc.
- Fuel injector for dual fuel applications having non-return valve for leakage control26 Mar 2026US 2026/0085649 A1Caterpillar Inc.
- Dual fuel injector and method26 Mar 2026US 2026/0085650 A1Caterpillar Inc.
- Asymmetric fuel injection window and fuel metering window22 Jan 2026US 2026/0022673 A1Caterpillar Inc.
Most cited
By later US patents
- System and methods for electronic control of an accumulator fuel system101US 5,678,521 ACummins Engine Company, Inc. · 1997
- Hydraulically-actuated fuel injector with direct control needle valve77US 5,697,342 ACaterpillar Inc. · 1997
- Hydraulically-actuated fluid injector having pre-injection pressurizable fluid storage chamber and direct-operated check76US 5,463,996 ACaterpillar Inc. · 1995
- Fuel injection apparatus75US 4,590,904 ARobert Bosch GmbH · 1986
- Electromaagnetic high-pressure injection valve75US 5,127,585 ASiemens Aktiengesellschaft · 1992