Flow control system
US-11643998-B2 · May 9, 2023 · US
Hydraulically actuated valves draining the chamber to release the closing pressure
Hydraulically actuated valves draining the chamber to release the closing pressure · 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 | F02M47/025 |
| Official title | {Hydraulically actuated valves draining the chamber to release the closing pressure} |
| Display label | Hydraulically actuated valves draining the chamber to release the closing pressure |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
A flow control system
US-2022364534-A1 · Nov 17, 2022 · US
Fuel injection valve
US-2021131392-A1 · May 6, 2021 · US
Fuel injection valve
US-2021131393-A1 · May 6, 2021 · US
Fuel system having fixed geometry flow regulating valve for limiting injector cross talk
US-10895233-B2 · Jan 19, 2021 · US
Fuel system having fixed geometry flow regulating valve for limiting injector cross talk
US-2020362805-A1 · Nov 19, 2020 · US
Fuel injection controller
US-10837394-B2 · Nov 17, 2020 · US
Filter for fuel injectors
US-10830196-B2 · Nov 10, 2020 · US
Fuel injection device
US-10808661-B2 · Oct 20, 2020 · US
Fuel injector
US-10767611-B2 · Sep 8, 2020 · US
Fuel injection controller
US-2020248643-A1 · Aug 6, 2020 · US
Filter for fuel injectors
US-2020173410-A1 · Jun 4, 2020 · US
Injection system of an internal combustion engine and automotive vehicle including such an injection system
US-10550808-B2 · Feb 4, 2020 · US
Fuel injection device
US-2019360441-A1 · Nov 28, 2019 · US
Fuel injector
US-2019010908-A1 · Jan 10, 2019 · US
Fuel injector
US-10100797-B2 · Oct 16, 2018 · US
Fuel injection valve for internal combustion engines
US-9777684-B2 · Oct 3, 2017 · US
Injection system of an internal combustion engine and automotive vehicle including such an injection system
US-2017276112-A1 · Sep 28, 2017 · US
Direct fuel injectors with variable injection flow rate
US-9719474-B2 · Aug 1, 2017 · US
Fuel injection valve for internal combustion engines
US-9719471-B2 · Aug 1, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M47/025?
- CPC F02M47/025 is the Cooperative Patent Classification code for “Hydraulically actuated valves draining the chamber to release the closing pressure.”
- How many patents are filed under CPC F02M47/025 (Hydraulically actuated valves draining the chamber to release the closing pressure)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC F02M47/025 growing?
- Publication counts under this code: 1 in 2022 vs 1 in 2023 (latest complete years).