Patently Apple has uncovered a Dell patent for using laptop surfaces to charge portable devices. The system involves laying the devices on top of an accessory attached to the laptop supplying inductive power.
https://www.techspot.com/news/95507-dell-testing-reverse-wireless-charging-laptops-patent-shows.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/95507-dell-testing-reverse-wireless-charging-laptops-patent-shows.html?utm_source=dlvr.it&utm_medium=blogger