ALEXANDRIA, Va., June 18 -- United States Patent no. 12,327,409, issued on June 10, was assigned to Retrocausal Inc. (Wash.).

"System and method for determining sub-activities in videos and segmenting the videos with little to no annotation" was invented by Quoc-Huy Tran (Redmond, Wash.), Muhammad Zeeshan Zia (Sammamish, Wash.), Andrey Konin (Redmond, Wash.), Sateesh Kumar (La Jolla, Calif.), Sanjay Haresh (Burnaby, Canada), Awais Ahmed (Karachi, Pakistan), Hamza Khan (Karachi, Pakistan) and Muhammad Shakeeb Hussain Siddiqui (Karachi, Pakistan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for determining sub-activities in videos and segmenting the videos is disclosed. The method includes...