It's pretty rare that patent law makes a big difference in slowing down a field of software innovation. The main examples I can think of are eFax suing fax machine software companies, and Blackboard suing education companies.
In particular the large tech companies simply ignore all existing patents, develop what they want, and defend themselves in court if need be. Google is never going to say "well someone else got a key patent, let's give up development in the AI space".
In particular the large tech companies simply ignore all existing patents, develop what they want, and defend themselves in court if need be. Google is never going to say "well someone else got a key patent, let's give up development in the AI space".