What are the requirements for non-English oaths or declarations in patent applications?

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

According to MPEP 602.06, non-English oaths or declarations must meet specific requirements:

• The oath or declaration must be in a language the individual can understand.
• It must state that the individual understands the content of any related documents.
• Unless provided by the USPTO or in accordance with PCT Rule 4.17(iv), it must be accompanied by an English translation.
• A statement confirming the translation’s accuracy is required.

As stated in the MPEP: “37 CFR 1.69 requires that oaths and declarations be in a language which is understood by the individual making the oath or declaration, i.e., a language which the individual comprehends.”