Craig Wright who claims to be Satoshi Nakamoto, wants to get patents related to cryptocurrency, blockchains etc.
This could affect probably all alt-coins
https://news.bitcoin.com/craig-wright-filing-patents/
http://www.coindesk.com/bitcoin-creator-craig-wright-patents/
http://www.reuters.com/article/us-bitcoin-wright-patents-idUSKCN0Z61GM