The Wireless Power Consortium (WPC) led the trend to embed wireless charging capabilities into consumer devices and specified the Qi standard, which is the most widely used technology to wirelessly charge devices. The adoption of the Qi standard has accelerated as more and more charging stations offer convenient wireless charging for compatible devices. Beyond smartphones, wireless charging is also used in power tools, electric toothbrushes, medical devices or the charging of electric vehicles. In order to identify wireless charging patents, the IPlytics Platform was used to search and combine data from standards, standard contributions as well as patents and SEP data. Results show that while the wireless charging of phones or other devices such a computers, tablets or smart watches has already been a market success, the wireless charging of electric vehicles is yet to rise.
Companies currently offering wireless charging in smartphones (excluding aftermarket products) include Apple, Samsung, Sony, LG, Nokia, Huawei, Microsoft, Google and Blackberry. The Qi standard is the most popular wireless charging standard in the world, with more than 200 million devices supporting this interface. First released in 2008, by 2019 the Qi standard had been incorporated into more than 160 smartphones, tablets and other devices. In addition, there are currently 18 automotive brands that offer wireless charging through the Qi standard in cars either as a standard option or an add-on solution.
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