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.
Electronic Priority Document Exchange (PDX) is a system that allows for the electronic transmission of priority documents between participating foreign intellectual property offices. As stated in MPEP 215.01:
Electronic Priority Document Exchange (PDX) agreements provide for the electronic transmission of priority documents to and from participating foreign intellectual property offices.
This system streamlines the process of obtaining certified copies of foreign priority applications, which is crucial for claiming priority in patent applications.