What is a Demand in the context of the Patent Cooperation Treaty (PCT)?

A Demand is a request for international preliminary examination under Chapter II of the Patent Cooperation Treaty (PCT). As stated in MPEP 1864: “The use of the term ‘Demand’ distinguishes Chapter II from the ‘Request’ under Chapter I.” The Demand allows applicants to have their international application examined and potentially obtain a positive international preliminary examination report.

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Tags: chapter ii, demand, international preliminary examination, PCT