Check valve cartridge with flow guide for compact backflow prevention assembly
US-11852254-B2 · Dec 26, 2023 · US
with a plurality of valve members
with a plurality of valve members · 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 | F16K15/035 |
| Official title | {with a plurality of valve members} |
| Display label | with a plurality of valve members |
| Total patents | 85 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 10 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 16 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Check cover assemblies for backflow prevention assemblies with integrated test cock protection shroud
US-2023332702-A1 · Oct 19, 2023 · US
Check cover assemblies for backflow prevention assemblies with integrated test cock protection shroud
US-11719352-B2 · Aug 8, 2023 · US
Backflow prevention assembly having a cartridge with dual zone testing
US-2023228067-A1 · Jul 20, 2023 · US
Backflow prevention assembly with a linkage
US-2022412474-A1 · Dec 29, 2022 · US
Method and mechanism for symmetrically controlling pressure in process chamber
US-11359732-B1 · Jun 14, 2022 · US
Check valve cartridge with flow guide for compact backflow prevention assembly
US-2022049487-A1 · Feb 17, 2022 · US
Check cover assemblies for backflow prevention assemblies with integrated test cock protection shroud
US-2022049786-A1 · Feb 17, 2022 · US
Backflow prevention assembly with telescoping bias assembly and reversible valve member
US-2022049781-A1 · Feb 17, 2022 · US
Directional valve, especially for breathing gases, and method for manufacturing same
US-11199273-B2 · Dec 14, 2021 · US
Smart and connected backflow preventer assembly
US-2021372096-A1 · Dec 2, 2021 · US
Multi-stage displacement pump
US-11181103-B2 · Nov 23, 2021 · US
Ventilation flow rate regulator for a pressurised tank of a vehicle
US-11155158-B2 · Oct 26, 2021 · US
Check valves
US-10948093-B2 · Mar 16, 2021 · US
Check valves
US-10935148-B2 · Mar 2, 2021 · US
Low flow-restriction shut-off valve with excess flow closure functionality
US-10907746-B2 · Feb 2, 2021 · US
Flap-retaining clip for a pressure relief assembly
US-10850593-B2 · Dec 1, 2020 · US
Venting valve
US-2020338962-A1 · Oct 29, 2020 · US
Dual check valve fluid circulation system for dishwasher appliances
US-10722098-B2 · Jul 28, 2020 · US
Valve
US-2020232570-A1 · Jul 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K15/035?
- CPC F16K15/035 is the Cooperative Patent Classification code for “with a plurality of valve members.”
- How many patents are filed under CPC F16K15/035 (with a plurality of valve members)?
- Our database includes 85 publications tagged with this CPC code.
- Is patent activity under CPC F16K15/035 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).