The basic MP3 decoding and encoding technology is patent-free in the European Union, all patents having expired there. In the United States, the technology will be substantially patent-free on 31 December 2017 (see below). The majority of MP3 patents expired in the US between 2007 and 2015.
মৌলিক এমপিথ্রি ডিকোডিং এবং প্রযুক্তি পেটেন্ট মুক্ত কোথায়?
European Union