Pressure reducer assembly
US-12572163-B2 · Mar 10, 2026 · US
the fluid acting on a diaphragm
the fluid 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 | F16K31/145 |
| Official title | the fluid acting on a diaphragm |
| Display label | the fluid acting on a diaphragm |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 7 |
| 2019 | 7 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Inversion inhibitor for fluid control valve and methods of fluid control
US-12259066-B2 · Mar 25, 2025 · US
Pressure reducer assembly
US-2024288888-A1 · Aug 29, 2024 · US
Converter for sanitary outlet valves
US-D1000586-S · Oct 3, 2023 · US
Flush Valve Apparatus
US-2023243137-A1 · Aug 3, 2023 · US
Converter for sanitary outlet valves
US-D969969-S · Nov 15, 2022 · US
Siphon activated valve
US-11434631-B2 · Sep 6, 2022 · US
Inversion inhibitor for fluid control valve and methods of fluid control
US-2022112959-A1 · Apr 14, 2022 · US
Valve arrangement
US-11287052-B2 · Mar 29, 2022 · US
Plumbing valve and corresponding series
US-11261992-B2 · Mar 1, 2022 · US
Inversion inhibitor for fluid control valve and methods of fluid control
US-11181202-B2 · Nov 23, 2021 · US
Fluid control valve having diaphragm that exclusively biases to closed position and methods of fluid control
US-11137078-B2 · Oct 5, 2021 · US
Diaphragm for fluid control valve and methods of fluid control
US-11137080-B2 · Oct 5, 2021 · US
Diaphragm lip and seal for fluid control valve and methods of fluid control
US-11137079-B2 · Oct 5, 2021 · US
Valve for a flush-mounted body of a sanitary fitting, having a control knob rotatably fastened to a valve knob
US-11105438-B2 · Aug 31, 2021 · US
Converter for sanitary outlet valves
US-D920477-S · May 25, 2021 · US
Siphon activated valve
US-2021002879-A1 · Jan 7, 2021 · US
Valve arrangement
US-2020362983-A1 · Nov 19, 2020 · US
Siphon activated valve
US-10774512-B2 · Sep 15, 2020 · US
Vacuum operated valve
US-10704244-B2 · Jul 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K31/145?
- CPC F16K31/145 is the Cooperative Patent Classification code for “the fluid acting on a diaphragm.”
- How many patents are filed under CPC F16K31/145 (the fluid acting on a diaphragm)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC F16K31/145 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).