[bubblethink]

Isn't it just defensive ? Is there any instance of anyone using or licensing an ML patent ? Mostly people like IBM, MS, etc. were doing patents anyway for decades, and they continue to do so. So everyone else has to play the same game. I don't think there has been any big case involving patent infringement over ML/AI.

[m0zg]

It's "defensive" only until the company starts sliding financially, at which point it becomes _very_ offensive. That's how IBM got MS into this game: one day IBM lawyers showed up with an invoice at Bill Gates' office.