Foldable devices will probably soon be a hit that every company will have in its portfolio. Microsoft now owns a patent that deals with a liquid in the joint of the device. The liquid should be placed in the cavities at the joint and help to bend easier. The lifespan of the device could thus reach a completely different level. Of course, there is an ingenious system of protection against possible leakage. It may come soon Microsoft with flexible device with Windows, where the flexible joint will be solved in this way. You can see the graphic form in the gallery.