What is WIPO ST.25 and how does it relate to 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.

WIPO ST.25 is a standard for the presentation of nucleotide and amino acid sequence listings in patent applications. It was used for applications filed before July 1, 2022. The MPEP notes:

“This section is not applicable to applications filed on or after July 1, 2022, having disclosures of nucleotide and/or amino acid sequences as defined in 37 CFR 1.831(b).”

For applications filed on or after July 1, 2022, the newer WIPO ST.26 standard applies, as outlined in MPEP §§ 2412 – 2419.