Piston with combustion stabilizing bowl
US-2025297569-A1 · Sep 25, 2025 · US
having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl
having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl · 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 | F02B23/0627 |
| Official title | {having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl} |
| Display label | having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl |
| Total patents | 41 |
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 | 3 |
| 2016 | 7 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel system for reducing fuel targeting errors and engine operating method
US-11598300-B2 · Mar 7, 2023 · US
Passive prechamber lean burn combustion system
US-2022220921-A1 · Jul 14, 2022 · US
Diesel engine, motor vehicle and method for reducing heat transfer to a piston of a cylinder of a diesel engine
US-11162410-B2 · Nov 2, 2021 · US
Diesel engine, motor vehicle and method for reducing heat transfer to a piston of a cylinder of a diesel engine
US-2021180508-A1 · Jun 17, 2021 · US
Fuel system for reducing fuel targeting errors and engine operating method
US-2021164428-A1 · Jun 3, 2021 · US
Fuel system for reducing fuel targeting errors and engine operating method
US-10989153-B2 · Apr 27, 2021 · US
Methods and systems for a piston
US-10823045-B2 · Nov 3, 2020 · US
Internal combustion engine
US-10808602-B2 · Oct 20, 2020 · US
Piston crown for an internal combustion engine
US-10738682-B2 · Aug 11, 2020 · US
Power cylinder apparatus for reducing unburnt hydrocarbon emissions
US-10724424-B2 · Jul 28, 2020 · US
Methods and systems for a piston
US-2020149465-A1 · May 14, 2020 · US
Diesel engine
US-2020080468-A1 · Mar 12, 2020 · US
Fuel system for reducing fuel targeting errors and engine operating method
US-2020063701-A1 · Feb 27, 2020 · US
Diesel engine
US-2020063644-A1 · Feb 27, 2020 · US
Diesel engine
US-2019376442-A1 · Dec 12, 2019 · US
Diesel engine
US-2019360428-A1 · Nov 28, 2019 · US
Fuel injector bore repair
US-10471554-B2 · Nov 12, 2019 · US
Internal combustion engine
US-2019242295-A1 · Aug 8, 2019 · US
Piston and engine provided with the same
US-10233864-B2 · Mar 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B23/0627?
- CPC F02B23/0627 is the Cooperative Patent Classification code for “having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl.”
- How many patents are filed under CPC F02B23/0627 (having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC F02B23/0627 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).