On Aug 3, 2020, Xiao-i Robot sued Apple in Shanghai High People's Court and claimed that Apple's Siri infringed its Chinese Patent No.200410053749.9. Xiao-i requested permanent injunction and a damage of CNY 10 Billion (USD 1.4 Billon).

This is the continuation of a 8-year long dispute. In June 2012 Xiao-i started the infringement law suit in Shanghai Intermediate People's Court. Apple then requested invalidation of this patent at Patent Re-examination Board (PRB). PRB maintained the validity of the patent in Sept 2013 which decision was then appealed to Beijing No.1 Intermediate Court. The court again maintained the validity in July 2014. The validity case was further appealed to Beijing High People's Court which overturned the lower court and PRB's decision in April 2015. Subsequently the Supreme People's Court (SPC) re-tried this case and decided to maintain the patent valid in June 2020.

While the validity of the patent was in dispute in various instances in Beijing, the Shanghai court suspended the infringement case in Feb 2015.

The key point of dispute in the validity law suits was whether the patent description meets the sufficiency requirement.