Systems and methods for at-cylinder fuel switching
US-12535041-B2 · Jan 27, 2026 · US
Biofuels, e.g. plant oils
Biofuels, e.g. plant oils · 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 | F02D19/0652 |
| Official title | {Biofuels, e.g. plant oils} |
| Display label | Biofuels, e.g. plant oils |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 8 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and systems for turbocharger
US-12404801-B2 · Sep 2, 2025 · US
Systems and methods for at-cylinder fuel switching
US-2025179970-A1 · Jun 5, 2025 · US
Dual fuel lockout switch for generator engine
US-2025154911-A1 · May 15, 2025 · US
Work vehicle power system with low carbon fuel blends
US-12270354-B2 · Apr 8, 2025 · US
Methods and systems for turbocharger
US-2024418119-A1 · Dec 19, 2024 · US
Estimating biodiesel blend using virtual sensors and virtual sensing methods
US-12104545-B1 · Oct 1, 2024 · US
Dual fuel lockout switch for generator engine
US-2024183319-A1 · Jun 6, 2024 · US
Methods and systems for turbocharger
US-11982223-B2 · May 14, 2024 · US
Dual fuel lockout switch for generator engine
US-11905895-B2 · Feb 20, 2024 · US
Work vehicle power system with low carbon fuel blends
US-2023407807-A1 · Dec 21, 2023 · US
Process for commissioning an exhaust particulate filter
US-11846218-B2 · Dec 19, 2023 · US
Dual fuel generator with remote regulator
US-11840970-B2 · Dec 12, 2023 · US
Method for control of advanced combustion through split direct injection of high heat of vaporization fuel or water fuel mixtures
US-11834983-B2 · Dec 5, 2023 · US
Methods and systems for turbocharger
US-2023243294-A1 · Aug 3, 2023 · US
Dual fuel lockout switch for generator engine
US-2023235707-A1 · Jul 27, 2023 · US
Self-adaptive oil spraying control system and method for biodiesel engine
US-11572818-B2 · Feb 7, 2023 · US
Off-board fuel regulator for generator engine
US-2023023142-A1 · Jan 26, 2023 · US
Off-board fuel regulator for generator engine
US-11530654-B2 · Dec 20, 2022 · US
Off-board fuel regulator for generator engine
US-11492985-B2 · Nov 8, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D19/0652?
- CPC F02D19/0652 is the Cooperative Patent Classification code for “Biofuels, e.g. plant oils.”
- How many patents are filed under CPC F02D19/0652 (Biofuels, e.g. plant oils)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC F02D19/0652 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).