Fuel regulator
US-12480461-B2 · Nov 25, 2025 · US
Fuel-metering pins or needles
Fuel-metering pins or needles · 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 | F02M19/04 |
| Official title | Fuel-metering pins or needles |
| Display label | Fuel-metering pins or needles |
| Total patents | 27 |
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 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flow control restrictor
US-2024026842-A1 · Jan 25, 2024 · US
Fuel regulator
US-2024026841-A1 · Jan 25, 2024 · US
Charge forming device with adjustable valve limiter
US-11293380-B2 · Apr 5, 2022 · US
Tamper resistant adjustment valve for a charge forming device
US-2021381470-A1 · Dec 9, 2021 · US
Carburetor including a manual fuel control device
US-11131272-B2 · Sep 28, 2021 · US
Tamper resistant adjustment valve for a charge forming device
US-11118536-B2 · Sep 14, 2021 · US
Carburetor fuel control
US-10890140-B2 · Jan 12, 2021 · US
Charge forming device with adjustable valve limiter
US-2020291900-A1 · Sep 17, 2020 · US
Charge forming device with adjustable valve limiter
US-10738741-B2 · Aug 11, 2020 · US
Tamper resistant adjustment valve for a charge forming device
US-2020191095-A1 · Jun 18, 2020 · US
Portable engine working machine and rotary carburetor incorporated therein
US-10634095-B2 · Apr 28, 2020 · US
Carburetor Including A Manual Fuel Control Device
US-2020049106-A1 · Feb 13, 2020 · US
Rotary throttle valve and carburetor
US-2020032742-A1 · Jan 30, 2020 · US
Portable working machine including engine with carburetor and fuel supply control method thereof
US-10495017-B2 · Dec 3, 2019 · US
Portable Engine Working Machine And Rotary Carburetor Incorporated Therein
US-2019048827-A1 · Feb 14, 2019 · US
Portable engine working machine and rotary carburetor incorporated therein
US-10202942-B2 · Feb 12, 2019 · US
Portable Working Machine Including Engine With Carburetor And Fuel Supply Control Method Thereof
US-2018334980-A1 · Nov 22, 2018 · US
Carburetor air-fuel mixture adjustment assembly and tools
US-10082107-B2 · Sep 25, 2018 · US
Carburetor air-fuel mixture adjustment assembly and tools
US-10072615-B2 · Sep 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M19/04?
- CPC F02M19/04 is the Cooperative Patent Classification code for “Fuel-metering pins or needles.”
- How many patents are filed under CPC F02M19/04 (Fuel-metering pins or needles)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC F02M19/04 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).