The EPO and Google have been working together to bring you a translation service optimised for patent documents – Patent Translate
With the most recent addition of Chinese, Patent Translate now enables free on-the-fly-translation of patents from, and into, English for 14 languages.
It is estimated that by the year 2013, the total volume of Chinese patent documentation will be over 10 million.
Languages now covered for translations between English are fourteen other languages, namely Chinese, Danish, Dutch, German, Finnish, French, Greek, Hungarian, Italian, Norwegian, Polish, Portuguese, Spanish and Swedish.
Launched in February 2012 and integrated into the Espacenet database, Patent Translate is expected to enable machine translations of patents into all 28 official languages of the 38 member states of the European Patent Organisation, plus Japanese, Korean and Russian by 2014, and represents the world’s most comprehensive multilingual platform for patent information.
For more details see yourself at http://www.epo.org/searching/free/patent-translate.html