Throttle device and refrigeration cycle system with same
US-10161541-B2 · Dec 25, 2018 · US
for preventing water-hammer or noise
for preventing water-hammer or noise · 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 | F16K47/02 |
| Official title | for preventing water-hammer or noise |
| Display label | for preventing water-hammer or noise |
| Total patents | 260 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 11 |
| 2017 | 21 |
| 2018 | 27 |
| 2019 | 30 |
| 2020 | 38 |
| 2021 | 28 |
| 2022 | 37 |
| 2023 | 26 |
| 2024 | 16 |
| 2025 | 16 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Structure for Vane-Type Valve Assembly
US-2018363803-A1 · Dec 20, 2018 · US
Leveling valve for discharging and supplying fluid
US-2018319240-A1 · Nov 8, 2018 · US
Valves
US-2018313465-A1 · Nov 1, 2018 · US
Control valve with high performance valve cage
US-2018306334-A1 · Oct 25, 2018 · US
Valve structure, and hydraulic device, fluid machine, and machine, each having same
US-2018259081-A1 · Sep 13, 2018 · US
Pressure control valve
US-2018224010-A1 · Aug 9, 2018 · US
Compressor recirculation valve with noise-suppressing muffler
US-10024228-B2 · Jul 17, 2018 · US
Quiet pulse valve
US-9993762-B2 · Jun 12, 2018 · US
Solenoid valve
US-2018156353-A1 · Jun 7, 2018 · US
Pressure control valve and control valve
US-9982785-B2 · May 29, 2018 · US
Pressure reduction valve
US-2018135775-A1 · May 17, 2018 · US
Structure for preventing vibration of solenoid valve
US-2018073657-A1 · Mar 15, 2018 · US
Apparatus and method for retaining a noise attenuation assembly for use with a pressure regulator
US-2018058606-A1 · Mar 1, 2018 · US
Control valve
US-9903481-B2 · Feb 27, 2018 · US
Control valve
US-9903488-B2 · Feb 27, 2018 · US
Motor-driven valve
US-9897232-B2 · Feb 20, 2018 · US
Connection socket for sanitary fitting with floor-standing faucet column
US-2018044897-A1 · Feb 15, 2018 · US
Passive Exhaust Valve With External Torsion Spring
US-2018038495-A1 · Feb 8, 2018 · US
Throttle device and refrigeration cycle system with same
US-2018038511-A1 · Feb 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K47/02?
- CPC F16K47/02 is the Cooperative Patent Classification code for “for preventing water-hammer or noise.”
- How many patents are filed under CPC F16K47/02 (for preventing water-hammer or noise)?
- Our database includes 260 publications tagged with this CPC code.
- Is patent activity under CPC F16K47/02 growing?
- Publication counts under this code: 16 in 2024 vs 16 in 2025 (latest complete years).