Sony has reportedly patented its own take on the type of controller that also snaps onto a smartphone to double as a grip for the device. This version of the accessory has PlayStation-esque buttons, joysticks and triggers, as one might hope. All in all, the alleged new IP looks very like a DualShock made just for smartphones.
https://www.notebookcheck.net/Sony-patents-a-version-of-a-DualShock-controller-for-smartphones.582071.0.html