Planet Money has a story on one such case: http://www.npr.org/blogs/money/2013/06/07/188370495/when-patents-attack-part-two http://www.npr.org/blogs/money/2013/

Planet Money has a story on one such case: http://www.npr.org/blogs/money/2013/06/07/188370495/when-patents-attack-part-two http://www.npr.org/blogs/money/2013/06/07/188370495/when-pat... In that particular case, which was regarding a ridiculously broad patent for offsite network-backups, the plaintiff lost on a technicality; there was proof of a co-inventor who hadn't been included in the patent-filing. If it wasn't for that oversight they would almost certainly have won the case.