ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,441, issued on Aug. 4, was assigned to SNAP INC. (Santa Monica, Calif.).

"Surface-based user input for extended reality" was invented by Robert Fischer (Vienna) and Kai Zhou (Wiener Neudorf, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods in the present disclosure relate to surface-based user input for extended reality (XR) devices. An XR device tracks a hand of a user across multiple captured image frames to obtain positions of the hand in a real-world environment. The XR device detects an input plane associated with a physical surface in the real-world environment and projects the positions onto the input plane. The XR de...