Engine system
US-2026036094-A1 · Feb 5, 2026 · US
Injectors
Injectors · 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 | F02D19/0686 |
| Official title | {Injectors} |
| Display label | Injectors |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine device
US-2025290456-A1 · Sep 18, 2025 · US
Engine device
US-2025290473-A1 · Sep 18, 2025 · US
Methanol-gasoline mixing energizing device, methanol-fueled automobile control system, and automobile
US-2025290475-A1 · Sep 18, 2025 · US
Multi-fuel injection system and injector
US-11773792-B1 · Oct 3, 2023 · US
Port-direct injection engine systems and methods using ethanol-gasoline fuels
US-11661902-B1 · May 30, 2023 · US
Engine
US-11598272-B2 · Mar 7, 2023 · US
Cam actuated gas admission valve with electro-hydraulic trim control
US-11566545-B2 · Jan 31, 2023 · US
Engine device
US-11428177-B2 · Aug 30, 2022 · US
Engine
US-2022178316-A1 · Jun 9, 2022 · US
Methods and systems for reducing catalyst cooling during fuel cut via pre-chamber ignition system
US-11352968-B1 · Jun 7, 2022 · US
Engine
US-11187163-B2 · Nov 30, 2021 · US
Engine device
US-2021355886-A1 · Nov 18, 2021 · US
Engine
US-2021293187-A1 · Sep 23, 2021 · US
Engine device
US-11111866-B2 · Sep 7, 2021 · US
Oil injection methods for combustion enhancement in natural gas reciprocating engines
US-10989146-B2 · Apr 27, 2021 · US
Cam actuated gas admission valve with electro-hydraulic trim control
US-2020347754-A1 · Nov 5, 2020 · US
System and method for valve seat injection
US-10808650-B2 · Oct 20, 2020 · US
Engine device
US-2020284213-A1 · Sep 10, 2020 · US
Engine device
US-10690069-B2 · Jun 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D19/0686?
- CPC F02D19/0686 is the Cooperative Patent Classification code for “Injectors.”
- How many patents are filed under CPC F02D19/0686 (Injectors)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC F02D19/0686 growing?
- Publication counts under this code: 4 in 2023 vs 3 in 2025 (latest complete years).