FreeType and PatentsThe TrueType bytecode patents have expired! Since May 2010, all patents related to bytecode hinting have expired worldwide. It it thus no longer necessary to disable the bytecode interpreter, and starting with FreeType version 2.4, it is enabled by default. The affected patents are Patent #1: US5155805: Method and apparatus for moving control points in displaying digital typeface on raster output
yebo blog: FreeTypeプロジェクトがTrueType特許満了を祝う
