Sony Interactive Entertainment has a back button accessory for the DualShock 4 that never made its way to our shores. And then, the company had a patent about integrating those back buttons into a controller. That obviously never happened with the DualSense. But the company has filed for another similar patent.
As it is, the SIE patent pretty much describes the DualShock 4 back button accessory. Drawings from the patent even look exactly like the existing accessory. It even comes complete with back pedals and a round middle segment which may be the OLED display. It is even attached the same way, via the bottom of the controller.
This highly redundant patent may simply be the renewal of the idea, applying it from the DualShock 4 to the DualSense. Which could make some sense, since the accessory came very late in the PS4’s life cycle.
No doubt if it comes out as a purchasable product, it will be highly welcomed, especially for certain games that could use the extra buttons. But there’s every possibility that the patent will remain just that. After all, Sony has just one patent like that, and quite recently too: the integrated back button patent didn’t materialise into the DualSense.