TikTok and parent ByteDance have filed a suit against Triller in response to Triller's suit filed in July that alleges ByteDance infringed on one of its patents (Bloomberg)

Bloomberg:
TikTok and parent ByteDance have filed a suit against Triller in response to Triller's suit filed in July that alleges ByteDance infringed on one of its patents� —  - Lawsuit seeks ruling TikTok doesn't infringe rival's patent  — Both video-streaming companies are in take-over negotiations