Pressure equalization device and a housing comprising such a pressure equalization device
US-2026088439-A1 · Mar 26, 2026 · US
and remaining open after return of the normal pressure
and remaining open after return of the normal pressure · 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 | F16K17/025 |
| Official title | {and remaining open after return of the normal pressure} |
| Display label | and remaining open after return of the normal pressure |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 9 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Battery housing with valve device, battery and motor vehicle
US-12567643-B2 · Mar 3, 2026 · US
Pressure relief assembly
US-12553528-B2 · Feb 17, 2026 · US
Pressure Relief Assembly with Detent
US-2025383026-A1 · Dec 18, 2025 · US
Explosion-proof venting valve device
US-2025286205-A1 · Sep 11, 2025 · US
Emergency degassing valve apparatus
US-12379039-B2 · Aug 5, 2025 · US
Pressure equalization apparatus and electrochemical system
US-12366300-B2 · Jul 22, 2025 · US
Fuse pin valve
US-12352361-B2 · Jul 8, 2025 · US
Pressure relief valve
US-2025207677-A1 · Jun 26, 2025 · US
Overpressure valve system for a subsea manifold
US-2025164023-A1 · May 22, 2025 · US
Pressure relief assembly
US-2025084927-A1 · Mar 13, 2025 · US
Pressure compensation device for battery housing and battery housing
US-2025038344-A1 · Jan 30, 2025 · US
Toe valve
US-12146385-B2 · Nov 19, 2024 · US
Pressure relief mechanism, battery, apparatus, and method and equipment for manufacturing battery
US-2024309959-A1 · Sep 19, 2024 · US
Toe valve
US-2024229600-A9 · Jul 11, 2024 · US
Toe valve
US-2024133265-A1 · Apr 25, 2024 · US
Fuse pin valve
US-2023392701-A1 · Dec 7, 2023 · US
Pressure relief assembly
US-2023366476-A1 · Nov 16, 2023 · US
Emergency degassing valve apparatus
US-2023323973-A1 · Oct 12, 2023 · US
Battery Housing With Valve Device, Battery and Motor Vehicle
US-2023198086-A1 · Jun 22, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K17/025?
- CPC F16K17/025 is the Cooperative Patent Classification code for “and remaining open after return of the normal pressure.”
- How many patents are filed under CPC F16K17/025 (and remaining open after return of the normal pressure)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC F16K17/025 growing?
- Publication counts under this code: 4 in 2024 vs 9 in 2025 (latest complete years).