Valve for permanent implantation, in particular for treatment of normal pressure hydrocephalus
US-12390624-B2 · Aug 19, 2025 · US
weight-loaded
weight-loaded · 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 | F16K17/12 |
| Official title | weight-loaded |
| Display label | weight-loaded |
| Total patents | 51 |
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 | 1 |
| 2016 | 8 |
| 2017 | 6 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tire air supplementing device
US-12319101-B2 · Jun 3, 2025 · US
Non-return check valve and check valve apparatus for vacuum system
US-12085178-B2 · Sep 10, 2024 · US
Check valve having a spherical loading element
US-12066117-B2 · Aug 20, 2024 · US
Valve device for fuel tank
US-2024255065-A1 · Aug 1, 2024 · US
Valve device
US-11932100-B2 · Mar 19, 2024 · US
Valve device
US-11932101-B2 · Mar 19, 2024 · US
Injection valve, method and system
US-11920429-B2 · Mar 5, 2024 · US
Non-return check valve and check valve apparatus for vacuum system
US-2023296183-A1 · Sep 21, 2023 · US
Tire air supplementing device
US-2023278375-A1 · Sep 7, 2023 · US
Venting device and battery module including the same
US-2023268611-A1 · Aug 24, 2023 · US
Steam Regulation Valve
US-2023228337-A1 · Jul 20, 2023 · US
Injection valve, method and system
US-2023139113-A1 · May 4, 2023 · US
Valve device
US-2023027839-A1 · Jan 26, 2023 · US
Valve device
US-2023018794-A1 · Jan 19, 2023 · US
Check valve having a spherical loading element
US-2022381357-A1 · Dec 1, 2022 · US
Compression molded PRV sealing flap
US-11505036-B2 · Nov 22, 2022 · US
Crankcase ventilation system with constant restriction in the flow direction and free flow in an opposite direction
US-11492936-B2 · Nov 8, 2022 · US
Water outlet valve assembly and humidifier including water outlet valve assembly
US-11391380-B2 · Jul 19, 2022 · US
Valve for permanent implantation, in particular for treatment of normal pressure hydrocephalus
US-2022072285-A1 · Mar 10, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K17/12?
- CPC F16K17/12 is the Cooperative Patent Classification code for “weight-loaded.”
- How many patents are filed under CPC F16K17/12 (weight-loaded)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC F16K17/12 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).