The language requirements for filing an international application with the USPTO are specified in MPEP 1810 and 37 CFR 1.431(b)(2): “The international application is in the English language ( 35 U.S.C. 361(c) , PCT Art. 11(1)(ii) ).” If an international application is not in English, the USPTO is not competent to receive it. However, the…

Read More