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Nokia feels out tattoos that vibrate with incoming calls

SAN FRANCISCO — Mobile phone maker Nokia is seeking a US patent for tattoos that vibrate to let people know when they have calls on their mobile phones. Technology laid out in a patent application available online Wednesday would enable tattoos to receive magnetic waves emitted by mobile phones. Waves…

Apple seeks patent for battery that could run devices for weeks

A recent patent application filed by computer giant Apple reveals what might be the company’s next big thing: hydrogen batteries. Hydrogen batteries work by splitting water into its core chemical components, then using those chemicals to generate electricity, but for many years the reaction was too volatile for most commercial…