Chinese AI company Xiao-i Robot vs Apple patent dispute was heard for the fourth time on December 28 at the Shanghai High People's Court. Shanghai Xiao-i Robot Technology Co. Ltd sued Apple for 10 billion Yuan(~$1.4 billion USD) on August 3, 2020 at the Shanghai High People’s Court. The lawsuit for patent infringement claims Apple’s Siri infringed Chinese patent no. ZL200410053749.9. The Shanghai High Court also heard a dispute filed by Apple against Xiao-i robot on the same morning requesting confirmation of no infringement of patent, according to the announcement of court sessions. The two disputes are very likely to be related, said people familiar with the matter, hinting that Apple may have turned from passive defense to active attack.