Intal

1. English, French, German
   1. https://www.epo.org/law-practice/legal-texts/html/epc/2016/e/ar14.html : "The official languages of the European Patent Office shall be English, French and German."
2. English, French, Spanish
   1. https://www.wipo.int/pressroom/en/prdocs/2004/wipo_pr_2004_379.html