Membrane for a moving a valve disk of a control valve, and a control valve
US-11746923-B2 · Sep 5, 2023 · US
acting on a diaphragm
acting on a 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 | F16K31/402 |
| Official title | {acting on a diaphragm} |
| Display label | acting on a diaphragm |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 11 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 8 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flush valve
US-11739512-B2 · Aug 29, 2023 · US
Multiple function shower systems facilitating low actuation force mode switching
US-11668079-B2 · Jun 6, 2023 · US
Irrigation Device, Valve Assembly, And Outlet
US-2023160489-A1 · May 25, 2023 · US
Systems and methods of flow control valves with manifolds
US-2023134915-A1 · May 4, 2023 · US
Flush Valve
US-2023125815-A1 · Apr 27, 2023 · US
Outlet valve
US-11578807-B2 · Feb 14, 2023 · US
Solenoid adapter
US-11578812-B2 · Feb 14, 2023 · US
Flush valve
US-11536014-B2 · Dec 27, 2022 · US
Self-powered irrigation systems, generator systems and methods of controlling irrigation
US-2022368195-A1 · Nov 17, 2022 · US
High-pressure fluid discharge device
US-2022333700-A1 · Oct 20, 2022 · US
Fluid pressure control device
US-2022228608-A1 · Jul 21, 2022 · US
Valve with reinforcement ports and manually removable scrubber
US-11391392-B2 · Jul 19, 2022 · US
A membrane for a moving a valve disk of a control valve, and a control valve
US-2022221081-A1 · Jul 14, 2022 · US
Low pressure shut off valve and system
US-2022213969-A1 · Jul 7, 2022 · US
Valve arrangement for a vibration damper
US-2022196106-A1 · Jun 23, 2022 · US
Compressed-fluid discharge control device
US-2022048050-A1 · Feb 17, 2022 · US
Outlet valve
US-2022018456-A1 · Jan 20, 2022 · US
Valve assembly for an electronic faucet
US-2021332574-A1 · Oct 28, 2021 · US
Valve assembly for an electronic faucet
US-11085176-B2 · Aug 10, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K31/402?
- CPC F16K31/402 is the Cooperative Patent Classification code for “acting on a diaphragm.”
- How many patents are filed under CPC F16K31/402 (acting on a diaphragm)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC F16K31/402 growing?
- Publication counts under this code: 8 in 2024 vs 8 in 2025 (latest complete years).