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Electrodes for lead-acid accumulators
Electrodes for lead-acid accumulators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M4/14 |
| Official title | Electrodes for lead-acid accumulators |
| Display label | Electrodes for lead-acid accumulators |
| Total patents | 273 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 23 |
| 2016 | 27 |
| 2017 | 22 |
| 2018 | 28 |
| 2019 | 22 |
| 2020 | 18 |
| 2021 | 15 |
| 2022 | 26 |
| 2023 | 44 |
| 2024 | 28 |
| 2025 | 13 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fiber mat for battery plate reinforcement
US-9843048-B2 · Dec 12, 2017 · US
Lead-acid battery formulations containing discrete carbon nanotubes
US-9806343-B2 · Oct 31, 2017 · US
Lead-acid battery
US-2017309897-A1 · Oct 26, 2017 · US
Lead acid battery
US-9735409-B2 · Aug 15, 2017 · US
Positive electrode plate for lead-acid battery, lead-acid battery and method of manufacturing positive electrode plate for lead-acid battery
US-2017222214-A1 · Aug 3, 2017 · US
Electrode for secondary battery, method for manufacturing same, secondary battery comprising same, and cable-type secondary battery
US-2017222278-A1 · Aug 3, 2017 · US
Preparation of polymeric resins and carbon materials
US-2017152340-A1 · Jun 1, 2017 · US
Lead-acid battery
US-2017092934-A1 · Mar 30, 2017 · US
Bisphenol-based resin, electrode, lead storage battery, production methods for these, and resin composition
US-2017033362-A1 · Feb 2, 2017 · US
Carbonaceous materials for lead acid batteries
US-2016380261-A1 · Dec 29, 2016 · US
Lead-acid battery
US-2016380311-A1 · Dec 29, 2016 · US
Carbon materials comprising enhanced electrochemical properties
US-2016372750-A1 · Dec 22, 2016 · US
Embossed separators, batteries and methods
US-2016372732-A1 · Dec 22, 2016 · US
Method for producing hybrid negative plate for lead-acid storage battery and lead-acid storage battery
US-9524831-B2 · Dec 20, 2016 · US
Hybrid negative plate for lead-acid storage battery and lead-acid storage battery
US-9508493-B2 · Nov 29, 2016 · US
Polyolefinic plate wraps, improved wrapped plates, improved lead acid batteries, and related methods
US-2016344036-A1 · Nov 24, 2016 · US
Fiber mat for battery plate reinforcement
US-2016329568-A1 · Nov 10, 2016 · US
Oxidized carbon blacks and applications for lead acid batteries
US-2016322634-A1 · Nov 3, 2016 · US
Gauntlet lead-acid battery systems
US-2016315327-A1 · Oct 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M4/14?
- CPC H01M4/14 is the Cooperative Patent Classification code for “Electrodes for lead-acid accumulators.”
- How many patents are filed under CPC H01M4/14 (Electrodes for lead-acid accumulators)?
- Our database includes 273 publications tagged with this CPC code.
- Is patent activity under CPC H01M4/14 growing?
- Publication counts under this code: 28 in 2024 vs 13 in 2025 (latest complete years).