Software patents: China, Europe, US
Software patents that deal with technical effects, physical parameters, and improving computer function are favored, but business methods are disfavored.
european
Litigation by “unfair surprise”
By American standards, European patent oppositions lack legal protections. By contrast, US PTAB patent trials don’t allow last minute “Chewbacca defenses”.
Advantages of USPTO PTAB proceedings
When compared to European patent oppositions, PTAB methods look great because they employ a number of legal protections lacking in the European system.
