The patent landscape arguably has never undergone so much change so quickly as in the last few years. Some of the intense judicial scrutiny of patents is reminiscent of a bygone era. But in other ways, today’s patent landscape is unlike anything we’ve seen, involving new doctrines, procedures and forums.

All of these changes make for some pretty lively cocktail conversations—for patent trial lawyers at least. Here are our thoughts on four of the big issues:

Software Patents Under Siege