When submitting prior art in languages other than English for reexamination, the USPTO has specific requirements. According to MPEP 2244: "If the prior art patents and printed publications are in a language other than English, any necessary translation should be included." This means that: Translations must be provided for non-English prior art The translation should be accurate and complete Both the original document and the translation should be submitted It's crucial to provide translations to ensure that the examiner can fully understand and evaluate the relevance of the prior art to the patent claims under reexamination. To learn more: prior art reexamination non-English documents translations USPTO requirements