Qcom and Apple sued, and countersued each other in China over patents for god knows how many times. Please look it up in google.
Still no mention of "Chinese patent number CNyyyyy (being a registration of US patent USyyyy) has been violated by Chinese company XXXX"
Are you sure you guys aren't just making this up?
[1]https://www.theverge.com/tech/2019/3/22/18275884/apple-qualc...