Energy storage device and energy storage apparatus
US-2020395582-A1 · Dec 17, 2020 · US
Vents or other means allowing expansion
Vents or other means allowing expansion · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01G9/12 |
| Official title | Vents or other means allowing expansion |
| Display label | Vents or other means allowing expansion |
| Total patents | 122 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 5 |
| 2017 | 20 |
| 2018 | 12 |
| 2019 | 11 |
| 2020 | 6 |
| 2021 | 11 |
| 2022 | 16 |
| 2023 | 11 |
| 2024 | 6 |
| 2025 | 15 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Solid electrolytic capacitor and solid electrolytic capacitor manufacturing method
US-2020312573-A1 · Oct 1, 2020 · US
Sealing body and nonaqueous electrolyte secondary battery
US-2020194759-A1 · Jun 18, 2020 · US
Energy storage apparatus
US-10665837-B2 · May 26, 2020 · US
Electronic unit
US-2019392993-A1 · Dec 26, 2019 · US
Electric compressor
US-10498201-B2 · Dec 3, 2019 · US
Solid electrolytic capacitor and method for manufacturing the same
US-2019362904-A1 · Nov 28, 2019 · US
Can for Electrolytic Capacitor
US-2019333706-A1 · Oct 31, 2019 · US
Hydrogen-releasing film
US-10439185-B2 · Oct 8, 2019 · US
Electrical energy storage device
US-10340501-B2 · Jul 2, 2019 · US
Energy storage apparatus
US-10333122-B2 · Jun 25, 2019 · US
Electric storage device
US-10333121-B2 · Jun 25, 2019 · US
Flow-through electrode capacitive deionization cell
US-2019144310-A1 · May 16, 2019 · US
Electric storage device
US-2019115163-A1 · Apr 18, 2019 · US
Electricity storage device
US-10256444-B2 · Apr 9, 2019 · US
Electrochemical element
US-2018366275-A1 · Dec 20, 2018 · US
Electrolytic Capacitor with Safety Vent
US-2018330887-A1 · Nov 15, 2018 · US
Electric power storage device
US-10096815-B2 · Oct 9, 2018 · US
Printing device provided with walls for preventing leakage of electrolysis liquid to outside of walls
US-10081208-B2 · Sep 25, 2018 · US
Explosion-proof apparatus
US-2018226199-A1 · Aug 9, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01G9/12?
- CPC H01G9/12 is the Cooperative Patent Classification code for “Vents or other means allowing expansion.”
- How many patents are filed under CPC H01G9/12 (Vents or other means allowing expansion)?
- Our database includes 122 publications tagged with this CPC code.
- Is patent activity under CPC H01G9/12 growing?
- Publication counts under this code: 6 in 2024 vs 15 in 2025 (latest complete years).