Ask HN: Is the patent crisis still raging?

A few years ago, it seemed like patents threatened to unravel the tech industry. Patent trolls were suing everyone left and right. Huge companies were making huge acquisitions "for the patents." Small companies were terrified that they would be stomped out for the most inane of patent infringements. Now though, I don't hear much about it. Did the news cycle just move on to other stuff? Or was there legislation and/or legal agreements to defuse the situation?