Replacement of lead batteries with lithium batteries
US-2024204558-A1 · Jun 20, 2024 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02J7/0071 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 612 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2020 | 81 |
| 2021 | 113 |
| 2022 | 112 |
| 2023 | 96 |
| 2024 | 101 |
| 2025 | 95 |
| 2026 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Switch systems for rechargeable power storage devices
US-2024195192-A1 · Jun 13, 2024 · US
Techniques for charging a battery pack while the battery pack operates as a backup power source to a device
US-10879717-B2 · Dec 29, 2020 · US
Charging system and method for controlling optimum charging processes
US-10875419-B2 · Dec 29, 2020 · US
Systems, devices and methods of providing customer support in locating products
US-10875752-B2 · Dec 29, 2020 · US
Management system, management method, power device, vehicle-mounted device, and management server
US-2020398693-A1 · Dec 24, 2020 · US
Charging mode switching circuit and method
US-10873198-B2 · Dec 22, 2020 · US
Led-based emergency lighting equipment and methodology
US-2020393101-A1 · Dec 17, 2020 · US
Battery charging method and apparatus
US-10857895-B2 · Dec 8, 2020 · US
Battery pack
US-2020381930-A1 · Dec 3, 2020 · US
Charging control device for suitably performing charging regardless of charger type
US-10855089-B2 · Dec 1, 2020 · US
Power usage pattern collector and charging controller
US-2020373775-A1 · Nov 26, 2020 · US
Electronic apparatus and control method
US-2020373774-A1 · Nov 26, 2020 · US
Charging device, charging method and terminal
US-10840712-B2 · Nov 17, 2020 · US
High efficiency wireless charger system
US-10826315-B2 · Nov 3, 2020 · US
Adapter and method for charging control
US-10819134-B2 · Oct 27, 2020 · US
Method and apparatus for charging battery
US-2020335993-A1 · Oct 22, 2020 · US
Battery charging/discharging control device and method for controlling same
US-2020328608-A1 · Oct 15, 2020 · US
Battery charge controls
US-2020321794-A1 · Oct 8, 2020 · US
Power control method and device in wireless power transmission system
US-2020321804-A1 · Oct 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02J7/0071?
- CPC H02J7/0071 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H02J7/0071 (Electricity)?
- Our database includes 612 publications tagged with this CPC code.
- Is patent activity under CPC H02J7/0071 growing?
- Publication counts under this code: 101 in 2024 vs 95 in 2025 (latest complete years).