[aix1]

I looked through the list and only one of the patents is granted outside China (and, at a glance, appears to be novel): https://patents.google.com/patent/CN113246473A/en

P.S. I have no idea what patent practices are like in China.

[BoorishBears]

That's the default pressure advance K factor test that's been used for years. Literally no way they can claim that's novel.

[bb88]

Maybe it's novel? Who really knows though unless you want to spend time through the sprawling patent system. Or the body of work that encompasses the open source rep rap community.