how patent trolls kill innovation Published 11 years ago • 71K plays • Length 6:23 Download video MP4 Download video MP3 Similar videos 2:03 patent troll 9:44 patent trolls 5:43 exposing the patent trolls - the ring of fire 6:41 drew curtis: how i beat a patent troll 10:35 how to slay a patent troll: lee cheng at tedxsouthcapitolst 9:51 patents, novelty, and trolls: crash course intellectual property #4