F02M 25/14
Adding anti-knock agents, not provided for in subgroups f02m25/022 - f02m25/10
Official title: adding anti-knock agents, not provided for in subgroups F02M25/022 - F02M25/10
F02M25/14 (Adding anti-knock agents, not provided for in subgroups f02m25/022 - f02m25/10) appears on 123 US grants and 131 published applications in this corpus.
Search patents in F02M- Granted patents
- 123
- Published applications
- 131
- Assignees
- 55
- Inventors
- 184
- Latest grant
- 1 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 8 |
| 2003 | 6 | 0 |
| 2004 | 1 | 4 |
| 2005 | 2 | 5 |
| 2006 | 3 | 8 |
| 2007 | 4 | 6 |
| 2008 | 7 | 13 |
| 2009 | 7 | 6 |
| 2010 | 12 | 11 |
| 2011 | 6 | 7 |
| 2012 | 4 | 8 |
| 2013 | 4 | 4 |
| 2014 | 8 | 8 |
| 2015 | 1 | 2 |
| 2016 | 3 | 8 |
| 2017 | 4 | 5 |
| 2018 | 2 | 2 |
| 2019 | 9 | 10 |
| 2020 | 9 | 5 |
| 2021 | 7 | 3 |
| 2022 | 1 | 4 |
| 2023 | 3 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Marine engine systems and methods for operating the same1 Oct 2024US 12,104,522 B1Saudi Arabian Oil Company
- System device for stratified injecting exhaust gas recirculation for clean combustion of internal combustion engine18 Jun 2024US 12,012,912 B2Tianjin University
- Method for control of advanced combustion through split direct injection of high heat of vaporization fuel or water fuel mixtures5 Dec 2023US 11,834,983 B2The Research Foundation for The State University of New York
- Optimized fuel management system for direct injection ethanol enhancement of gasoline engines9 May 2023US 11,643,985 B2Massachusetts Institute of Technology
- Internal combustion engine having carbon dioxide capture and fuel additive synthesis system21 Mar 2023US 11,608,787 B2Southwest Research Institute
- Fluid Supply Device and Fluid Supply Unit for Increasing Combustion Efficiency30 Oct 2025US 2025/0334082 A1Hao Wei Environmental Technology Co., Ltd.
- Lubricant Compositions Containing Phosphorus For Use In Hydrogen Fueled Engines19 Jun 2025US 2025/0197765 A1Infineum International Limited
- Marine engine systems and methods for operating the same3 Oct 2024US 2024/0328345 A1Saudi Arabian Oil Company
- System device for stratified injecting exhaust gas recirculation for clean combustion of internal combustion engine22 Jun 2023US 2023/0193859 A1Tianjin University
- Optimized fuel management system for direct injection ethanol enhancement of gasoline engines8 Dec 2022US 2022/0389879 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Optimized fuel management system for direct injection ethanol enhancement of gasoline engines129US 7,225,787 B2Massachusetts Institute of Technology · 2007
- Fuel supply system73US 6,622,664 B2Daimler Chrysler AG · 2003
- Fuel management system for variable anti-knock agent octane enhancement of gasoline engines73US 7,444,987 B2Massachusetts Institute of Technology · 2008
- Internal combustion system using acetylene fuel67US 6,076,487 AGo-Tec · 2000
- Fuel composition supply means for driving cycle conditions in spark ignition engines66US 6,622,663 B2ExxonMobil Research and Engineering Company · 2003