Spark plug and internal combustion engine equipped with the same
US-2023216279-A1 · Jul 6, 2023 · US
the chamber being of air-swirl type
the chamber being of air-swirl type · 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 | F02B19/08 |
| Official title | the chamber being of air-swirl type |
| Display label | the chamber being of air-swirl type |
| Total patents | 85 |
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 | 2 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 14 |
| 2022 | 13 |
| 2023 | 19 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pre-chamber spark plug with tubular electrode and method of manufacturing same
US-11674494-B2 · Jun 13, 2023 · US
Spark plug
US-2023106076-A1 · Apr 6, 2023 · US
Internal combustion engine control device and ignition device
US-11603819-B2 · Mar 14, 2023 · US
Pre-Chamber Spark Plug for a Combustion Chamber of a Combustion Engine, Combustion Engine, and Motor Vehicle
US-2023010739-A1 · Jan 12, 2023 · US
Prechamber sparkplug having electrodes located for inhibiting flame kernel quenching
US-11522346-B2 · Dec 6, 2022 · US
Internal Combustion Engine Control Device and Ignition Device
US-2022325687-A1 · Oct 13, 2022 · US
Combustion pre-chamber device for an internal combustion engine
US-11434811-B2 · Sep 6, 2022 · US
Electronic fuel injection type diesel engine
US-11378001-B2 · Jul 5, 2022 · US
Pre-chamber arrangement for a gas engine and a gas engine
US-2022186658-A1 · Jun 16, 2022 · US
Methods and systems for prechamber
US-11346274-B1 · May 31, 2022 · US
Liquid and/or gaseous fuel delivery system and methods thereof
US-11293336-B2 · Apr 5, 2022 · US
Pre-chamber arrangement for a gas engine and a gas engine
US-11261778-B2 · Mar 1, 2022 · US
Systems and methods for a combined pre-chamber and thermactor air system
US-11255240-B1 · Feb 22, 2022 · US
Pre-chamber type diesel engine
US-2022018279-A1 · Jan 20, 2022 · US
Pre-chamber type diesel engine
US-2022010721-A1 · Jan 13, 2022 · US
Subchamber diesel engine
US-2022003147-A1 · Jan 6, 2022 · US
Internal combustion engine with pre-chamber
US-11215109-B2 · Jan 4, 2022 · US
Engine system
US-11208968-B2 · Dec 28, 2021 · US
Electronic fuel injection type diesel engine
US-2021388754-A1 · Dec 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B19/08?
- CPC F02B19/08 is the Cooperative Patent Classification code for “the chamber being of air-swirl type.”
- How many patents are filed under CPC F02B19/08 (the chamber being of air-swirl type)?
- Our database includes 85 publications tagged with this CPC code.
- Is patent activity under CPC F02B19/08 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).