Electrochemical cell with anode material in protrusion
US-2024363931-A1 · Oct 31, 2024 · US
Zinc electrodes
Zinc electrodes · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M4/244 |
| Official title | {Zinc electrodes} |
| Display label | Zinc electrodes |
| Total patents | 337 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 14 |
| 2017 | 19 |
| 2018 | 17 |
| 2019 | 32 |
| 2020 | 39 |
| 2021 | 41 |
| 2022 | 34 |
| 2023 | 48 |
| 2024 | 35 |
| 2025 | 31 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Composite air electrode and associated manufacturing method
US-2018366737-A1 · Dec 20, 2018 · US
Electrode Designs for High Energy Density, Efficiency, and Capacity in Rechargeable Alkaline Batteries
US-2018323429-A1 · Nov 8, 2018 · US
Anode cross-sectional characteristic gradient
US-2018261851-A1 · Sep 13, 2018 · US
Electrode cartridge and zinc secondary cell using same
US-2018248165-A1 · Aug 30, 2018 · US
Anion conducting membrane
US-2018175354-A1 · Jun 21, 2018 · US
Alkaline electrochemical cell with improved anode and separator components
US-2017365830-A1 · Dec 21, 2017 · US
Zinc anode composition
US-2017358793-A1 · Dec 14, 2017 · US
Zinc electrodes for batteries
US-2017331104-A1 · Nov 16, 2017 · US
Standby electrical energy storage devices
US-9819032-B2 · Nov 14, 2017 · US
Zinc electrodes for batteries
US-9802254-B2 · Oct 31, 2017 · US
Beta-delithiated layered nickel oxide electrochemically active cathode material and a battery including said material
US-9793542-B2 · Oct 17, 2017 · US
Battery including beta-delithiated layered nickel oxide electrochemically active cathode material
US-9793543-B2 · Oct 17, 2017 · US
Secondary battery using hydroxide ion-conductive ceramic separator
US-2017229697-A1 · Aug 10, 2017 · US
Secondary battery with hydroxide-ion-conducting ceramic separator
US-2017222271-A1 · Aug 3, 2017 · US
Battery using layered double hydroxide
US-2017200981-A1 · Jul 13, 2017 · US
Flexible micro-battery
US-2017200923-A1 · Jul 13, 2017 · US
Micro battery design and diagnosis
US-2017179549-A1 · Jun 22, 2017 · US
Micro battery design and diagnosis
US-2017176542-A1 · Jun 22, 2017 · US
Nickel-zinc battery
US-2017104241-A1 · Apr 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M4/244?
- CPC H01M4/244 is the Cooperative Patent Classification code for “Zinc electrodes.”
- How many patents are filed under CPC H01M4/244 (Zinc electrodes)?
- Our database includes 337 publications tagged with this CPC code.
- Is patent activity under CPC H01M4/244 growing?
- Publication counts under this code: 35 in 2024 vs 31 in 2025 (latest complete years).