AI machine cannot be called an inventor, rules UK court (ft.com)

Sounds like a bit of a fetish thing. If you say that Dabus was the inventor in a way that confers rights on the machine, then Thaler is taking those rights away and is acting like, well, a slaveholder.

Does this means that the product of neural network training is not owned by anybody, so free to be used by anyone?

Um, yeah? Can't assign rights to an entity that isn't legally eligible to have those rights.

I hear the same used to be true of various groups of humans in some jurisdictions.