A Chinese artificial intelligence company has filed a patent-infringement lawsuit against Apple.
Shanghai Zhizhen Network Technology, also known as Xiao-i, announced on Monday that it is suing Apple in a Shanghai court for one.43 billion U.S. dollars in damages.
It argues that Apple's voice-recognition technology Siri, introduced in 2011, infringes on a patent it was granted in 2009.
It demands that Apple stop the sale, production and use of products that infringe on that patent, which include the majority of Apple's products.
Xiao-i first sued Apple over Siri in 2012, and last month China's Supreme Court ruled that the Chinese firm's patent was valid.