I did a little digging and came up with this from the 2013 10-K:
Patents, Trademarks and Intellectual Property
We are pursuing three U.S. patent applications. Two of the three patent applications are based on parent Greek patent applications. There are corresponding international patent filings. The most recent of the three applications was independently drafted and filed July 12, 2013. On this most recent patent application, Anavex is awaiting a contractually obligated patent assignment document from one of the two named inventors.