Pressure Relief Valve with a Reverse Free Flow Configuration Integrated Therewith
US-2023243325-A1 · Aug 3, 2023 · US
opening on surplus pressure on either side
opening on surplus pressure on either side · 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 | F16K17/18 |
| Official title | opening on surplus pressure on either side |
| Display label | opening on surplus pressure on either side |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 8 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 10 |
| 2023 | 8 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Check valve with integrated pressure relied valve
US-2023235826-A1 · Jul 27, 2023 · US
Pressure balance valve with reversible check stops
US-2023175605-A1 · Jun 8, 2023 · US
Valve body for a damper
US-11668365-B2 · Jun 6, 2023 · US
Capacity control valve and control method for capacity control valve
US-11512786-B2 · Nov 29, 2022 · US
System and Method for Mitigating Water Hammer by Looping Surge Pressure
US-2022364668-A1 · Nov 17, 2022 · US
Bidirectional vent valve, battery, and electrical device
US-2022344770-A1 · Oct 27, 2022 · US
Overpressure protection apparatus
US-11480034-B2 · Oct 25, 2022 · US
Gate valve with improved bonnet seal assembly
US-11460114-B2 · Oct 4, 2022 · US
Rotary flow control valve that requires no linear motion
US-2022252163-A1 · Aug 11, 2022 · US
Bidirectional pressure relief valve
US-11384857-B1 · Jul 12, 2022 · US
Fluid expansion tank
US-11300198-B1 · Apr 12, 2022 · US
Balance valve, battery and power consumption apparatus
US-2022074517-A1 · Mar 10, 2022 · US
Valve device for a medical fluid line system
US-11241567-B2 · Feb 8, 2022 · US
Substrate storage container
US-11209093-B2 · Dec 28, 2021 · US
Fast-switching 2/2-way cartridge valve
US-11187335-B2 · Nov 30, 2021 · US
Gate valve with improved bonnet seal assembly
US-2021231222-A1 · Jul 29, 2021 · US
Substrate Storage Container
US-2021148479-A1 · May 20, 2021 · US
Valve body for a damper
US-2021088098-A1 · Mar 25, 2021 · US
Overpressure Protection Apparatus
US-2021071503-A1 · Mar 11, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K17/18?
- CPC F16K17/18 is the Cooperative Patent Classification code for “opening on surplus pressure on either side.”
- How many patents are filed under CPC F16K17/18 (opening on surplus pressure on either side)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC F16K17/18 growing?
- Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).