Who needs to sign an international patent application?
According to MPEP 1820, an international patent application must be signed by the applicant(s). Specifically:
“Pursuant to PCT Rule 4.15, the international application must be signed in Box No. X of the request by the applicant, or, where there are two or more applicants, by all of them.”
However, it’s important to note that:
“Under PCT Rule 26.2bis, it is sufficient for purposes of PCT Article 14(1)(a)(i) that the application is signed by only one of the applicants.”
To learn more: