Software patents in China, Europe, and the US
Software patents that deal with technical effects, physical parameters, and improving computer function are favored, but business methods are disfavored.
european
Federal Circuit rules against PTAB “Chewbacca defenses”
By American standards, European patent oppositions lack legal protections. By contrast, US PTAB patent trials don’t allow last minute “Chewbacca defenses”.
Impressions on the new (post AIA) Patent Trial and Appeal Board (PTAB) patent trial format
When compared to European patent oppositions, PTAB methods look great because they employ a number of legal protections lacking in the European system.
