Diesel engine
US-12516645-B2 · Jan 6, 2026 · US
with compression ignition
with compression ignition · 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 | F02B19/14 |
| Official title | with compression ignition |
| Display label | with compression ignition |
| Total patents | 57 |
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 | 6 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 11 |
| 2022 | 10 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Prechamber-type engine
US-2025369388-A1 · Dec 4, 2025 · US
Diesel engine
US-2025020088-A1 · Jan 16, 2025 · US
Electronic fuel injection type diesel engine
US-12085010-B2 · Sep 10, 2024 · US
Electronic fuel injection type diesel engine
US-2024044283-A1 · Feb 8, 2024 · US
Method for operating an internal combustion engine
US-11852096-B2 · Dec 26, 2023 · US
Active pre-chamber jet-assisted H2 multi-mode combustion
US-11828220-B1 · Nov 28, 2023 · US
Insert device for fuel injection
US-2023243504-A1 · Aug 3, 2023 · US
Gasoline internal combustion engine with assisted compression ignition
US-11506168-B2 · Nov 22, 2022 · US
Method for operating an internal combustion engine
US-2022341371-A1 · Oct 27, 2022 · US
Passive prechamber lean burn combustion system
US-2022220921-A1 · Jul 14, 2022 · US
Electronic fuel injection type diesel engine
US-11378001-B2 · Jul 5, 2022 · US
Ignitor for natural gas engine
US-11326507-B2 · May 10, 2022 · US
Engine system for emission reduction without aftertreatment
US-11293339-B2 · Apr 5, 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
Gasoline internal combustion engine with assisted compression ignition
US-2022003148-A1 · Jan 6, 2022 · US
Subchamber diesel engine
US-2022003147-A1 · Jan 6, 2022 · US
Electronic fuel injection type diesel engine
US-2021388754-A1 · Dec 16, 2021 · US
Pre-chamber type diesel engine
US-2021388755-A1 · Dec 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B19/14?
- CPC F02B19/14 is the Cooperative Patent Classification code for “with compression ignition.”
- How many patents are filed under CPC F02B19/14 (with compression ignition)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC F02B19/14 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).