ibm has filed a patent for coffee delivery drones that can predict when you need a drink drones could be flying around a large office complex and using biometrics blood pressure pupil dilation facial expressions detect when someone needs a flat white mocha or any other variationpeople could also use a gesture like beaconing or waving to indicate interest ibm said in its filing with the us patent office using advances in artificial intelligence the drone may take advantage of social psychological effects by first providing coffee to a person who is popular famous or otherwise has a high social statusibm the tech giant behind the deep blue chessplaying computer expects the drones to remember a persons preferences and the time they would like their coffeeand even when a recipient turns down an offering of a coffee the drone can move on to the next person who would like the preprepared drinkthe patent filed in the united states where the process can cost thousands of dollars describes several variations of a drink delivery dronein one example coffee is dispensed from the drone directly into a workers mug another option describes hot drinks delivered in a sealed bag to prevent any scalding dripsibm suggests the drone could be equipped with technology to detect blood pressure pupil dilation and facial expressions and judge whether people are drowsy