An great article from TsingHua Financial Review.   "Crowdfund Intellectual Property on the Bitcoin Blockchain"   Used Counterparty as the example.  
written by tsinghua university PHD student Feng Han,ShangHai Bitcoin Camp entrepreneur co-founder Ying GU ,Tsinghua
financial review senior editor Hongyu Jia and  Internet financial laboratory director  Zhenlin zhai.    
link:   http://www.thfr.com.cn/post.php?id=2292#0-tsina-1-69488-397232819ff9a47a7b7e80a40613cfe1