Apparatus for noise reduction in valves
US-12595864-B2 · Apr 7, 2026 · US
the throttling member being a perforated membrane
the throttling member being a perforated membrane · 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 | F16K47/14 |
| Official title | the throttling member being a perforated membrane |
| Display label | the throttling member being a perforated membrane |
| Total patents | 44 |
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 | 3 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Control valve and trim assembly for a control valve
US-12504097-B2 · Dec 23, 2025 · US
Valve trim
US-12215803-B2 · Feb 4, 2025 · US
Apparatus for noise reduction in valves
US-2024426397-A1 · Dec 26, 2024 · US
Control Valve and Trim Assembly for a Control Valve
US-2024384814-A1 · Nov 21, 2024 · US
Apparatus for noise reduction in valves
US-12085193-B2 · Sep 10, 2024 · US
Apparatus for noise reduction in valves
US-2024077148-A1 · Mar 7, 2024 · US
Valve Trim
US-2023194017-A1 · Jun 22, 2023 · US
Attenuator dome for a ball valve
US-11644124-B1 · May 9, 2023 · US
Valve trim
US-11585463-B2 · Feb 21, 2023 · US
Valve device, fluid control device, fluid control method, semiconductor manufacturing apparatus, and semiconductor manufacturing method
US-11506295-B2 · Nov 22, 2022 · US
Valve trim
US-2022325823-A1 · Oct 13, 2022 · US
Apparatus for reducing noise and cavitation in valves
US-11353139-B1 · Jun 7, 2022 · US
Lattice control cage for a regulator
US-11209101-B2 · Dec 28, 2021 · US
Attenuation element for use with valves
US-11187328-B2 · Nov 30, 2021 · US
Valve device, fluid control device, fluid control method, semiconductor manufacturing apparatus, and semiconductor manufacturing method
US-2021262577-A1 · Aug 26, 2021 · US
Retention mechanism for noise attenuation dome in fluid flow control device
US-11041571-B2 · Jun 22, 2021 · US
Valve arrangement and diaphragm assembly for a valve arrangement
US-10948105-B2 · Mar 16, 2021 · US
Anti-cavitation element for use with valves
US-10724643-B2 · Jul 28, 2020 · US
Attenuation element for use with valves
US-2020224775-A1 · Jul 16, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K47/14?
- CPC F16K47/14 is the Cooperative Patent Classification code for “the throttling member being a perforated membrane.”
- How many patents are filed under CPC F16K47/14 (the throttling member being a perforated membrane)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC F16K47/14 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).