F02B 3/08
Methods of operating
Official title: Methods of operating (F02B3/12 takes precedence)
F02B3/08 (Methods of operating) appears on 48 US grants and 37 published applications in this corpus.
Search patents in F02B- Granted patents
- 48
- Published applications
- 37
- Assignees
- 30
- Inventors
- 102
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 7 |
| 2016 | 1 | 2 |
| 2017 | 4 | 0 |
| 2018 | 3 | 5 |
| 2019 | 2 | 4 |
| 2020 | 3 | 1 |
| 2021 | 2 | 6 |
| 2022 | 2 | 1 |
| 2023 | 3 | 3 |
| 2024 | 4 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture7 Jul 2026US 12,674,409 B2Climate Energy Investments, LLC
- Stoichiometric high-temperature direct-injection compression-ignition engine14 Jan 2025US 12,196,125 B2The Board of Trustees of the Leland Stanford Junior University
- Work vehicle low cetane power system with external to cylinder compression ignition assistance23 Jul 2024US 12,044,187 B2Deere & Company
- Systems and method for controlling auto-ignition9 Apr 2024US 11,952,935 B2Transportation IP Holdings, LLC
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture9 Apr 2024US 11,952,936 B1ClearFlame Engines, Inc.
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture23 Jan 2025US 2025/0027440 A1ClearFlame Engines, Inc.
- Work vehicle low cetane power system with external to cylinder compression ignition assistance27 Jun 2024US 2024/0209806 A1Deere & Company
- Stoichiometric High-Temperature Direct-Injection Compression-Ignition Engine9 Nov 2023US 2023/0358161 A1The Board of Trustees of the Leland Stanford Junior University
- Methods and systems for multi-fuel engine22 Jun 2023US 2023/0193810 A1Transportation IP Holdings, LLC
- Cold Start for High-Octane Fuels in a Diesel Engine Architecture27 Apr 2023US 2023/0129315 A1ClearFlame Engines, Inc.
Most cited
By later US patents
- Internal combustion process and engine38US 4,040,400 A1977
- Compression-ignition type engine and combustion method of same31US 5,467,757 AToyota Jidosha Kabushiki Kaisha · 1995
- Internal combustion engine22US 6,006,720 AToyota Jidosha Kabushiki Kaisha · 1999
- Method of operating a compression ignition engine22US 6,340,003 B12002
- Method for operating a reciprocating-piston internal combustion engine22US 6,505,601 B1DaimlerChrysler AG · 2003