Concentric cylindrical member pair welding method and welding device thereof
US-11865640-B2 · Jan 9, 2024 · US
for injecting into the combustion chamber (F02M69/046 takes precedence)
for injecting into the combustion chamber (F02M69/046 takes precedence) · 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 | F02M69/045 |
| Official title | {for injecting into the combustion chamber (F02M69/046 takes precedence)} |
| Display label | for injecting into the combustion chamber (F02M69/046 takes precedence) |
| Total patents | 28 |
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 | 2 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine device
US-10961948-B2 · Mar 30, 2021 · US
Welding method and welding device
US-2021069828-A1 · Mar 11, 2021 · US
Internal combustion engine with injection device arranged in the cylinder barrel, and method for operating an internal combustion engine of said type
US-10590898-B2 · Mar 17, 2020 · US
Engine device
US-2020049100-A1 · Feb 13, 2020 · US
Fuel injection system and method of operating a fuel injection system
US-10519914-B2 · Dec 31, 2019 · US
Fuel injector
US-10480473-B2 · Nov 19, 2019 · US
Fuel injection strategies in opposed-piston engines with multiple fuel injectors
US-10458327-B2 · Oct 29, 2019 · US
Fuel injector
US-2019178214-A1 · Jun 13, 2019 · US
Fuel injection system and method of operating a fuel injection system
US-2019162146-A1 · May 30, 2019 · US
Fuel injection strategies in opposed-piston engines with multiple fuel injectors
US-2018371989-A1 · Dec 27, 2018 · US
Method for Operating an Internal Combustion Engine, in Particular of a Motor Vehicle
US-2018347501-A1 · Dec 6, 2018 · US
Methods and system for central fuel injection
US-2018320625-A1 · Nov 8, 2018 · US
Methods and systems for central fuel injection
US-10119490-B1 · Nov 6, 2018 · US
Fuel injection strategies in opposed-piston engines with multiple fuel injectors
US-10066545-B2 · Sep 4, 2018 · US
Method and system for fuel injection
US-9915219-B2 · Mar 13, 2018 · US
Internal combustion engine with injection device arranged in the cylinder barrel, and method for operating an internal combustion engine of said type
US-2018003140-A1 · Jan 4, 2018 · US
Fuel injection strategies in opposed-piston engines with multiple fuel injectors
US-2017198632-A1 · Jul 13, 2017 · US
Outboard motor
US-9683487-B2 · Jun 20, 2017 · US
Outboard motor
US-2016356252-A1 · Dec 8, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M69/045?
- CPC F02M69/045 is the Cooperative Patent Classification code for “for injecting into the combustion chamber (F02M69/046 takes precedence).”
- How many patents are filed under CPC F02M69/045 (for injecting into the combustion chamber (F02M69/046 takes precedence))?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F02M69/045 growing?
- Publication counts under this code: 2 in 2021 vs 1 in 2024 (latest complete years).