Feed-through forming a terminal for a metal-ion electrochemical accumulator, integrating a gas relief valve, associated accumulator
US-11189880-B2 · Nov 30, 2021 · US
Spring-loaded vent valves
Spring-loaded vent valves · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M50/333 |
| Official title | Spring-loaded vent valves |
| Display label | Spring-loaded vent valves |
| Total patents | 228 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 9 |
| 2018 | 9 |
| 2019 | 6 |
| 2020 | 11 |
| 2021 | 17 |
| 2022 | 24 |
| 2023 | 32 |
| 2024 | 42 |
| 2025 | 45 |
| 2026 | 21 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pouch-shaped secondary battery comprising venting guidance device
US-11189881-B2 · Nov 30, 2021 · US
Pouch-type secondary battery having gas discharge means
US-11177532-B2 · Nov 16, 2021 · US
Degassing Unit, Electronics Housing, in Particular Battery Housing, and Motor Vehicle
US-2021320376-A1 · Oct 14, 2021 · US
Degassing Unit and Electronics Housing, in Particular Battery Housing
US-2021320375-A1 · Oct 14, 2021 · US
Battery device and method for manufacturing battery device
US-2021265681-A1 · Aug 26, 2021 · US
Battery
US-2021257696-A1 · Aug 19, 2021 · US
High-voltage battery for an electrically powered vehicle
US-2021249709-A1 · Aug 12, 2021 · US
Battery, heat sealing apparatus, and method of manufacturing battery
US-2021249729-A1 · Aug 12, 2021 · US
Battery
US-2021218106-A1 · Jul 15, 2021 · US
Pressure Regulation System For Silicon Dominant Anode Lithium-Ion Cell
US-2021202981-A1 · Jul 1, 2021 · US
Pressure regulation system for silicon dominant anode lithium-ion cell
US-2021194041-A1 · Jun 24, 2021 · US
Battery pack water condensation mitigation
US-2021159473-A1 · May 27, 2021 · US
Battery housing
US-10862087-B2 · Dec 8, 2020 · US
Pouch-Type Secondary Battery Having Gas Discharge Means
US-2020321577-A1 · Oct 8, 2020 · US
Battery block
US-2020313129-A1 · Oct 1, 2020 · US
Rechargeable battery
US-2020303700-A1 · Sep 24, 2020 · US
Venting Device and Method for Manufacturing the Same
US-2020259146-A1 · Aug 13, 2020 · US
Pouch-shaped Secondary Battery Comprising Venting Guidance Device
US-2020251707-A1 · Aug 6, 2020 · US
Ventilation conduit for an aircraft
US-10734622-B2 · Aug 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M50/333?
- CPC H01M50/333 is the Cooperative Patent Classification code for “Spring-loaded vent valves.”
- How many patents are filed under CPC H01M50/333 (Spring-loaded vent valves)?
- Our database includes 228 publications tagged with this CPC code.
- Is patent activity under CPC H01M50/333 growing?
- Publication counts under this code: 42 in 2024 vs 45 in 2025 (latest complete years).