F02M 21/0275
For in-cylinder direct injection
Official title: {for in-cylinder direct injection, e.g. injector combined with spark plug}
F02M21/0275 (For in-cylinder direct injection) appears on 301 US grants and 334 published applications in this corpus.
Search patents in F02M- Granted patents
- 301
- Published applications
- 334
- Assignees
- 141
- Inventors
- 685
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 6 |
| 2003 | 3 | 4 |
| 2004 | 5 | 8 |
| 2005 | 3 | 10 |
| 2006 | 3 | 3 |
| 2007 | 8 | 4 |
| 2008 | 9 | 10 |
| 2009 | 4 | 7 |
| 2010 | 7 | 7 |
| 2011 | 4 | 17 |
| 2012 | 11 | 10 |
| 2013 | 3 | 13 |
| 2014 | 8 | 15 |
| 2015 | 14 | 28 |
| 2016 | 17 | 25 |
| 2017 | 19 | 18 |
| 2018 | 18 | 15 |
| 2019 | 25 | 14 |
| 2020 | 10 | 7 |
| 2021 | 7 | 4 |
| 2022 | 11 | 10 |
| 2023 | 8 | 18 |
| 2024 | 22 | 30 |
| 2025 | 22 | 26 |
| 2026 | 7 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pre-chamber combustion systems and methods11 Aug 2026US 12,704,088 B2M2X Energy Inc.
- Prechamber assembly9 Jun 2026US 12,650,107 B2Innio Jenbacher GmbH & Co OG
- Ammonia-fueled engine based on oxygen enhancement and ammonia-rich combustion control method thereof12 May 2026US 12,624,673 B2Tianjin University
- Controller for internal combustion engine5 May 2026US 12,618,379 B2Toyota Jidosha Kabushiki Kaisha
- Systems, devices and methods for input and output pressure management of air breathing engine reformers10 Mar 2026US 12,570,526 B2M2X Energy Inc.
- Fuel supply system, and vehicle1 Oct 2026US 2026/0298160 A1Isuzu Motors Limited
- Internal combustion engine1 Oct 2026US 2026/0298179 A1Toyota Jidosha Kabushiki Kaisha
- Integrated fuel supply and injection system suitable for ammonia-hydrogen blending1 Oct 2026US 2026/0298180 A1Tianjin University
- Fuel injector for direct injection of gaseous fuel27 Aug 2026US 2026/0251106 A9Phinia Delphi Luxembourg Sarl
- Fuel injection system for an internal combustion engine of a vehicle and a fuel injection method20 Aug 2026US 2026/0243192 A1Volvo Truck Corporation
Most cited
By later US patents
- Operating techniques for internal combustion engines116US 6,408,625 B1Cummins Engine Company, Inc. · 2002
- Method and apparatus for dual fuel injection into an internal combustion engine93US 6,202,601 B1Westport Research Inc. · 2001
- Multifuel storage, metering and ignition system92US 7,628,137 B12009
- Combustion enhancement system and method87US 6,745,744 B22004
- Method for controlling combustion in an internal combustion engine and predicting performance and emissions78US 7,392,129 B2Westport Power Inc. · 2008