The Intellectual Property Office has posted the Graphene The worldwide patent landscape in 2013 report. The report describes the graphene patent landscape as of March 2013. Over 3500 graphene patents were filed world wide in 2012. Academic patents are more numerous than corporate patents again this year and this trend shows a continued trend in this area. Samsung has filed the most graphene patents. China has invested heavily in graphene research as shown by the increase of patent generated in China.