Radiation devices
US-9518555-B2 · Dec 13, 2016 · US
Mechanical Engineering
Mechanical Engineering · 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 | F02P23/04 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 303 |
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 | 46 |
| 2016 | 48 |
| 2017 | 56 |
| 2018 | 65 |
| 2019 | 30 |
| 2020 | 25 |
| 2021 | 18 |
| 2022 | 8 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Corona ignition device and method for producing an ignition head for a corona ignition device
US-9464618-B2 · Oct 11, 2016 · US
Catalyst light-off time reduction and maintenance
US-2016290308-A1 · Oct 6, 2016 · US
Corona suppression at materials interface through gluing of the components
US-2016285241-A1 · Sep 29, 2016 · US
Ignition coil apparatus for high-frequency discharge
US-9447766-B2 · Sep 20, 2016 · US
Laser ignition system
US-2016268767-A1 · Sep 15, 2016 · US
Corona ignition system and method for controlling a corona ignition device
US-9441605-B2 · Sep 13, 2016 · US
High-frequency discharge ignition apparatus
US-9382894-B2 · Jul 5, 2016 · US
Laser spark plug having an improved seal between the combustion chamber window and the casing
US-2016153421-A1 · Jun 2, 2016 · US
Photo-Ignition Torch for Combustion Initiation and Gas Generation
US-2016123295-A1 · May 5, 2016 · US
Laser-induced spark ignition for an internal combustion engine
US-9316200-B2 · Apr 19, 2016 · US
Laser-induced spark ignition for an internal combustion engine
US-9284939-B2 · Mar 15, 2016 · US
Method and apparatus for controlling operation of an internal combustion engine
US-2016069320-A1 · Mar 10, 2016 · US
Laser ignition system based diagnostics
US-9255565-B2 · Feb 9, 2016 · US
Internal combustion engine and vehicle
US-2015377205-A1 · Dec 31, 2015 · US
Laser ignition system
US-2015377207-A1 · Dec 31, 2015 · US
Internal combustion engine and method of igniting a fuel
US-2015377206-A1 · Dec 31, 2015 · US
Laser ignition system based diagnostics
US-9222455-B2 · Dec 29, 2015 · US
Engine with laser ignition and measurement
US-9217638-B2 · Dec 22, 2015 · US
Laser spark plug
US-9212648-B2 · Dec 15, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02P23/04?
- CPC F02P23/04 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02P23/04 (Mechanical Engineering)?
- Our database includes 303 publications tagged with this CPC code.
- Is patent activity under CPC F02P23/04 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).