ALEXANDRIA, Va., June 17 -- United States Patent no. 12,314,476, issued on May 27, was assigned to Pencil Learning Technologies Inc. (Palo Alto, Calif.).

"Multi-user collaborative interfaces for streaming video" was invented by Amogh Asgekar (Palo Alto, Calif.) and Ayush Agarwal (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides systems and methods of providing multi-user collaborative interfaces. A computing system may receive a video stream. The video stream may have an overlay interface defined along a first plane. The computing system may identify, in at least one frame, a region defined on a second plane on which a user's hand is oriented. The computing system ...