How does WIPO Standard ST.26 relate to the MPEP’s definition of “modified amino acid”?

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 Standard ST.26 plays a crucial role in the MPEP’s definition of “modified amino acid”. According to MPEP 2412.03(c):

“Modified amino acid” includes any amino acid as described in paragraph 3(e) of WIPO Standard ST.26.

The MPEP directly incorporates the WIPO Standard ST.26 definition, making it an integral part of the USPTO’s guidelines for patent applications involving nucleotide and amino acid sequences. This alignment ensures international consistency in the treatment of modified amino acids in patent applications.