Patent landscapes › Electronics & gadgets

Is a wireless charger patented?

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

What our index shows
  • 5,118 US and WO patent publications since 2000 have a title matching “wireless chargpower transfer” or a close variant (our index of 9.7 million patent families; one publication per family).
  • Among the 1188 best keyword matches we examined, 739 were published in 2020 or later, and the earliest was published in 2000.
  • Most frequent assignees in those matches: APPLE INC (46), KONINKLIJKE PHILIPS NV (46), QUALCOMM INC (44), HYUNDAI MOTOR CO LTD (37).
  • Most common patent classes (CPC subclasses): H02J (1119), H01F (332), B60L (275), Y02T (239).

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 wireless charger

  1. Wireless charger device supporting multiple wireless power transfer specifications US-2026081471-A1 2026 · APPLE INC
    A wireless charger device can support multiple different receiver devices having different wireless charging specifications. The wireless charger device can house two wireless power transmitter coils having different dimensions an…
    View on Google Patents
  2. Laminar coil array in a multi-device wireless charger US-12573886-B2 2026 · AIRA INC
    Systems, methods and apparatus for wireless charging are disclosed. A wireless charging device has a plurality of planar power transmitting coils arranged in two or more layers between a charging surface and a ferrite layer, and a…
    View on Google Patents
  3. Wireless Power Transfer Apparatus, Charger, and Terminal Device US-2024136855-A1 2024 · HUAWEI TECH CO LTD
    A wireless power transfer apparatus includes a first control system, a first energy transmission system, and a second energy transmission system. The first control system is coupled to the first energy transmission system, and inp…
    View on Google Patents
  4. Multi-coil wireless charger WO-2024118510-A1 2024 · APPLE INC
    A multi-coil wireless power transfer (WPT) arrangement can include a magnetic core; first and second WPT coils positioned adjacent one another above the magnetic core; a third WPT coil positioned above the first and second wireles…
    View on Google Patents
  5. Wireless charger adapter US-2023216352-A1 2023 · Datalogic IP Tech Srl
    A wireless charger adapter may include a structural member, a receive inductor coil supported by the structural member, an electrical circuit, and an output. The structural member may be placed in proximate location with a cradle …
    View on Google Patents
  6. Techniques for detecting wireless device charging receiver position and maintaining uninterrupted wireless power transfer throughout position changes over an array of transmitter coils US-11611229-B2 2023 · APTIV TECH LTD
    Inductive charging techniques utilize a plurality of transmitter coils arranged in a predetermined configuration and each being configured to, when active, inductively transfer power to a receiver coil of a wireless device and a c…
    View on Google Patents
  7. Occupant adjustable single coil wireless charger US-2022255371-A1 2022 · APTIV TECH LTD
    Inductive charging systems and methods include providing a wireless charging pad comprising a single transmitter coil that, when active, is configured to inductively couple with a receiver coil of a wireless device placed on the w…
    View on Google Patents
  8. Wireless charger for underwater vehicles fed from a constant current distribution cable US-11018529-B2 2021 · UNIV UTAH STATE
    An apparatus for inductive power transfer (“IPT”) includes an active bridge section with input terminals that receive power from a constant current source, where the active bridge section operates at a fixed switching frequency, a…
    View on Google Patents
  9. Resonance converter for wireless charger and method for implementing the same US-10998768-B2 2021 · FOUNDATION SOONGSIL UNIV INDUSTRY COOPERATION
    Provided is a resonance converter for a wireless charger, which includes a full bridge inverter connected to an input power source that supplies an input voltage and having first to fourth switches, a resonance tank having a plura…
    View on Google Patents
  10. Wireless power transfer system having wireless power transfer system-charger US-10566825-B2 2020 · LG INNOTEK CO LTD
    A method of transferring wireless power using magnetic induction, can include selecting a coil among a plurality of coils partially overlapping each other; sensing a current flowing through the selected coil; receiving an amount o…
    View on Google Patents
  11. Induction Power Transfer Charger for Tablet to Tablet Wireless Charging US-2018198306-A1 2018 · FINDLEY ROBERT
    A wireless power transfer charger comprising one or more magnetic resonance units for equalizing stored power between two tablet data processing devices (DPDs) in close proximity to the wireless power transfer charger.
    View on Google Patents
  12. Wireless charger assembly mountable on different desks US-9660481-B2 2017 · FOXCONN INTERCONNECT TECHNOLOGY LTD
    A wireless charger assembly is used for transferring power to an electronic device through inductive charging. The wireless charger assembly includes a bottom case releasably mounted to an exterior flatbed, a transmitter coil, and…
    View on Google Patents
  13. Chargers and methods for wireless power transfer US-9356659-B2 2016 · MOJO MOBILITY INC
    Systems and methods for enabling efficient wireless power transfer, and charging of devices and batteries, in a manner that allows freedom of placement of the devices or batteries in one or multiple (e.g., one, two or three) dimen…
    View on Google Patents
  14. Wireless charger using inductive coupling US-2011074344-A1 2011 · SAMSUNG ELECTRONICS CO LTD
    A wireless charger of an inductive coupling type for charging a portable device provided with a rechargeable built-in battery having a second coil, includes a housing provided with a touch pad on one surface; a first coil retained…
    View on Google Patents

What this means for your idea

Because patents cover specific combinations of features, the useful question is not “has a wireless charger 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.

Check your own version of a wireless charger

Get the 10 closest patents to your design, charted feature by feature, in 24 hours. Order the $99 report See a sample

Or get the full $99 report: top 10 references charted feature by feature, in 24 hours.

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.