"A company that charged others for uploading video and audio content on to their own websites has had its podcast patent invalidated by a US court.
The Electronic Frontiers Foundation (EFF) argued that Personal Audio LCC had "not invented anything new" when it acquired the patent in 2012.
Building up patent libraries to aggressively pursue others for payments while making few if any products of one's own is sometimes referred to as "patent trolling"."
