Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-11643985-B2 · May 9, 2023 · US
Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines
Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02B51/00 |
| Official title | Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines |
| Display label | Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 11 |
| 2022 | 3 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-2022389879-A1 · Dec 8, 2022 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-11359559-B2 · Jun 14, 2022 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-2022034272-A1 · Feb 3, 2022 · US
Microwave heating of combustion chamber of internal combustion engine during cold starting
US-11174780-B1 · Nov 16, 2021 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-11168625-B2 · Nov 9, 2021 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-2021254568-A1 · Aug 19, 2021 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-11067012-B2 · Jul 20, 2021 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-11053870-B2 · Jul 6, 2021 · US
Internal combustion engine
US-2021189953-A1 · Jun 24, 2021 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-2021131367-A1 · May 6, 2021 · US
Internal combustion engine
US-10989107-B2 · Apr 27, 2021 · US
Control device for internal combustion engine and control method for internal combustion engine
US-10947934-B2 · Mar 16, 2021 · US
Control device for internal combustion engine and control method for internal combustion engine
US-10907559-B2 · Feb 2, 2021 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-2021003084-A1 · Jan 7, 2021 · US
Engines using supercritical syngas
US-10794340-B2 · Oct 6, 2020 · US
Fuel management system for variable ethanol octane enhancement of gasoline engines
US-2020300186-A1 · Sep 24, 2020 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-10781760-B2 · Sep 22, 2020 · US
Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US-2020224597-A1 · Jul 16, 2020 · US
Fuel management system for variable ethanol octane enhancement of gasoline engines
US-10711712-B2 · Jul 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B51/00?
- CPC F02B51/00 is the Cooperative Patent Classification code for “Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines.”
- How many patents are filed under CPC F02B51/00 (Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC F02B51/00 growing?
- Publication counts under this code: 3 in 2022 vs 1 in 2023 (latest complete years).