Patent landscapes › Electronics & gadgets

Is a power bank patented?

Short answer: specific designs of a power bank have been patented many times, but "a power bank" as a general idea is not what is protected. What matters is the exact combination of features in your version.

What our index shows
  • 15,628 US and WO patent publications since 2000 have a title matching “power bank” or a close variant (our index of 9.7 million patent families; one publication per family).
  • Among the 327 best keyword matches we examined, 173 were published in 2020 or later, and the earliest was published in 2000.
  • Most frequent assignees in those matches: BLACK & DECKER INC (11), MILWAUKEE ELECTRIC TOOL CORP (10), DURACELL US OPERATIONS INC (6), NANJING CHERVON IND CO LTD (5).
  • Most common patent classes (CPC subclasses): H02J (246), H01M (112), Y02E (97), G06F (23).

Counts come from keyword matching on titles and abstracts, so they are indicative, not a legal count. Some matches are different products that share a word.

14 real patent publications related to a power bank

  1. Portable power bank and charging method thereof WO-2025116099-A1 2025 · HANJUNGNCS CO LTD
    The present invention relates to a portable power bank that is capable of reducing charging time and has a sleek appearance by exposing only a single charging connector to the outside while supporting diversified charging power so…
    View on Google Patents
  2. Monitoring capacity of a power bank battery and devices charged therewith US-12166369-B2 2024 · DURACELL US OPERATIONS INC
    A portable power bank including a rechargeable battery may detect loss of capacity in the power bank battery. The power bank determines a nominal capacity of the power bank, and an actual capacity of the power bank, the actual cap…
    View on Google Patents
  3. Integrated monitoring capacity of a power bank battery and devices charged therewith US-12007450-B2 2024 · DURACELL US OPERATIONS INC
    A portable power bank including a rechargeable battery and/or a remote server may detect loss of capacity in the power bank battery. The power bank and/or remote server determines a nominal capacity of the power bank, and an actua…
    View on Google Patents
  4. Power bank having function for providing rechargeable range of battery pack, battery pack charging system comprising same, and method therefor US-2024085482-A1 2024 · LG ENERGY SOLUTION LTD
    The present invention relates to a power bank having a function of providing a chargeable range of a battery pack, a battery pack charging system including the same, and a method therefor, and more particularly, to a battery pack …
    View on Google Patents
  5. Portable power bank US-2024266853-A1 2024 · Shen Yi Kai
    A portable power bank, which is to be coupled with a mobile device having a screen, includes a housing, a battery, a display, and a signal receiving module. The housing has a front side and a back side to be coupled with the mobil…
    View on Google Patents
  6. Integrated monitoring charging efficiency of a rechargeable device via a power bank US-11710977-B2 2023 · DURACELL US OPERATIONS INC
    A portable power bank for charging a rechargeable device is described, and a dynamic charging efficiency is monitored while the power bank is charging the rechargeable device. Particularly, instantaneous power output of a battery …
    View on Google Patents
  7. Wirelessly chargeable portable power bank US-11381112-B2 2022 · CALIFORNIA INST OF TECHN
    A power bank includes, in part, a rechargeable battery, a wireless power recovery unit adapted to receive power wirelessly, a battery charging circuit adapted to deliver the power recovered by the power recovery unit to the rechar…
    View on Google Patents
  8. Uninterruptible portable power bank US-11309733-B1 2022 · SAMLIFE TECH CO LTD
    An uninterruptible portable power bank, including: a portable power bank, the PWM charge and discharge control circuit is coupled to the AC to DC transformer circuit, the battery and the protection circuit module and the DC to AC …
    View on Google Patents
  9. Intelligent determination of charges remaining via a power bank US-11233412-B2 2022 · DURACELL US OPERATIONS INC
    A portable power bank and mobile computing device are described, where the mobile computing device includes a rechargeable battery that receives electric charge from the power bank via an electrical connection. Systems and methods…
    View on Google Patents
  10. Portable charger and power bank US-10291062-B2 2019 · ARMAMENT SYSTEMS AND PROCEDURES INC
    A portable charger and power bank that can be used to charge a battery and to charge a device. Power can be received through an automobile dashboard DC voltage receptacle or through a USB input port, and can be used to charge a de…
    View on Google Patents
  11. Portable memory power bank US-2016049816-A1 2016 · SAMYA TECHNOLOGY CO LTD
    A portable memory power bank comprises a charging loop, a battery, a discharging loop, a MCU, a USB charging port and a USB discharging port inside a body of a power bank, and a built-in portable memory including a memory unit, a …
    View on Google Patents
  12. Portable power bank device with projecting function capable of charging an external device and displaying data from the external device US-9026811-B2 2015 · GIGASTONE CORP
    A portable power bank device with a projecting function comprises a battery unit, a control unit, and a micro projector unit. The battery unit is electrically coupled to a charge unit and restores power from an external power sour…
    View on Google Patents
  13. Portable Power Bank US-2015288219-A1 2015 · LAUSDEO CORP
    The present invention relates to a portable power bank comprising a battery pack, a first control module and a second control module, wherein the battery pack further comprises at least two cells connected in series, and wherein t…
    View on Google Patents
  14. Portable power bank with card reading function US-2013306726-A1 2013 · WONG JOHN
    A portable power bank with card reading function includes a battery unit, a charging unit, a control unit, a voltage converting unit, a first card reading unit, and a connection interface unit. The battery unit is coupled with the…
    View on Google Patents

What this means for your idea

Because patents cover specific combinations of features, the useful question is not “has a power bank been patented?” but “has my combination of features been described before?” Consumer electronics are among the most heavily patented areas; the specific circuit, mounting, or interaction is what distinguishes a design.

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Guides that help with this

First-look landscape. Not exhaustive. Not legal advice. This page lists keyword-matched publications from a limited database; it does not say whether any product is or isn't covered by a patent, whether a patent is still in force, or whether your idea is patentable. Consult a registered patent attorney or agent.