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This invention describes a small device, like a tea bag or infuser, that you place into your personal drink container. It contains a sensor designed to detect and identify specific substances within the liquid. The patent specifically claims the use of either chemical or acoustic sensors for this detection.
Why it matters: Filed before the widespread availability of highly miniaturized, low-power chemical and acoustic sensors. Advances in wireless communication protocols and ubiquitous smartphone integration now make transmitting data from such a small, immersible device far more practical and cost-effective.
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