F02M 21/0278
Port fuel injectors for single or multipoint injection into the air intake
Official title: {Port fuel injectors for single or multipoint injection into the air intake system}
F02M21/0278 (Port fuel injectors for single or multipoint injection into the air intake) appears on 174 US grants and 179 published applications in this corpus.
Search patents in F02M- Granted patents
- 174
- Published applications
- 179
- Assignees
- 94
- Inventors
- 440
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 1 |
| 2002 | 7 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 9 |
| 2005 | 3 | 4 |
| 2006 | 4 | 2 |
| 2007 | 5 | 6 |
| 2008 | 3 | 8 |
| 2009 | 4 | 5 |
| 2010 | 4 | 4 |
| 2011 | 4 | 9 |
| 2012 | 2 | 3 |
| 2013 | 1 | 4 |
| 2014 | 3 | 11 |
| 2015 | 9 | 13 |
| 2016 | 8 | 15 |
| 2017 | 11 | 2 |
| 2018 | 9 | 6 |
| 2019 | 8 | 14 |
| 2020 | 3 | 7 |
| 2021 | 7 | 4 |
| 2022 | 4 | 3 |
| 2023 | 10 | 17 |
| 2024 | 18 | 13 |
| 2025 | 11 | 11 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel injector assembly having sleeve with flow-directing cap and engine system using same3 Feb 2026US 12,540,593 B2Caterpillar Inc.
- Supplemental fuel system for compression-ignition engine30 Dec 2025US 12,510,043 B2American CNG, LLC
- Internal combustion engine and method for operating an internal combustion engine18 Nov 2025US 12,473,870 B2Innio Jenbacher GmbH & Co OG
- Intake runner for gaseous fuel engine, system, and method11 Nov 2025US 12,467,424 B2Caterpillar Inc.
- Fuel admission tube for enhanced mixing in gaseous fuel engine and engine operating method21 Oct 2025US 12,448,939 B1Caterpillar Inc.
- Gaseous fuel engine and operating strategy forming gaseous fuel charge from multiple injections13 Aug 2026US 2026/0235092 A1Caterpillar Inc.
- Injector for gaseous or liquid fuel23 Jul 2026US 2026/0210317 A1Robert Bosch GmbH
- Fuel system for engine2 Apr 2026US 2026/0092584 A1American CNG, LLC
- Dual fuel engine system, an intake manifold, and a method of manufacturing a dual fuel engine system5 Mar 2026US 2026/0063095 A1Cummins Inc.
- Engine8 Jan 2026US 2026/0009367 A1Yanmar Holdings Co., Ltd.
Most cited
By later US patents
- Fuel injector nozzle adapter118US 6,913,210 B2Holley Performance Products, Inc. · 2005
- Operating techniques for internal combustion engines116US 6,408,625 B1Cummins Engine Company, Inc. · 2002
- Fuel gas admixing process and device78US 5,992,388 APatentanwalt Hans Rudolf Gachnang · 1999
- Gas fuel supply mechanism for gas combustion engine58US 5,611,316 AHonda Giken Kogyo Kabushiki Kaisha · 1997
- Apparatus and method for converting conventionally fueled engines to operate on an alternative fuel44US 5,150,685 A1992