Method of forming a diaphragm for a liquid pump
US-12523213-B2 · Jan 13, 2026 · US
having fuel inlet valve controlled by diaphragm
having fuel inlet valve controlled by diaphragm · 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 | F02M17/04 |
| Official title | having fuel inlet valve controlled by diaphragm |
| Display label | having fuel inlet valve controlled by diaphragm |
| Total patents | 59 |
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 | 5 |
| 2016 | 2 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 12 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carburettor assembly
US-12429016-B2 · Sep 30, 2025 · US
Fuel feed unit and two-stroke engine having a fuel feed unit
US-11713738-B2 · Aug 1, 2023 · US
Carburettor assembly
US-2023204005-A1 · Jun 29, 2023 · US
Fuel feed unit and two-stroke engine having a fuel feed unit
US-2023013645-A1 · Jan 19, 2023 · US
Fluid driven diaphragm pump
US-2022412337-A1 · Dec 29, 2022 · US
Fuel supply device
US-11391248-B2 · Jul 19, 2022 · US
Fuel control system
US-11319902-B2 · May 3, 2022 · US
Fuel nozzle for a rotary throttle valve carburetor
US-11319901-B2 · May 3, 2022 · US
Fuel supply system for engine warm-up
US-11313328-B2 · Apr 26, 2022 · US
Starting-fuel supply device, adapter, and engine work machine
US-11174819-B2 · Nov 16, 2021 · US
Carburetor assembly start setting detection arrangement
US-11162435-B2 · Nov 2, 2021 · US
Carburetor system for a carburetor engine
US-11131271-B2 · Sep 28, 2021 · US
Fuel Supply Device
US-2021095619-A1 · Apr 1, 2021 · US
Fuel nozzle for a rotary throttle valve carburetor
US-2021071622-A1 · Mar 11, 2021 · US
Flow control valve for charge forming device
US-10895222-B2 · Jan 19, 2021 · US
Carburetor fuel control
US-10890140-B2 · Jan 12, 2021 · US
Fuel control system
US-2020340427-A1 · Oct 29, 2020 · US
Carburetor and handheld work apparatus including a combustion engine having said carburetor
US-10801444-B2 · Oct 13, 2020 · US
Starting-fuel supply device, adapter, and engine work machine
US-2020248651-A1 · Aug 6, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M17/04?
- CPC F02M17/04 is the Cooperative Patent Classification code for “having fuel inlet valve controlled by diaphragm.”
- How many patents are filed under CPC F02M17/04 (having fuel inlet valve controlled by diaphragm)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC F02M17/04 growing?
- Publication counts under this code: 3 in 2023 vs 1 in 2025 (latest complete years).