IOL.CO.ZA - Sep 8 - TikTok closest rival Triller has filed a patent infringement lawsuit in the USA for a video-related patent. The patent in question is US Patent No. 9,691,429. This patent is for a method of combining multiple videos synchronised to a single audio track which forms a big part of TikTok's offering. Last year, TikTok introduced a "green screen video" feature, which enables users to capture multiple short videos and then synchronise or stitch them together to one song or audio track.