World Intellectual Property Organization


December 2014 | No. 12/2014


Modifications to Demand Form and Other PCT Forms

Several PCT forms relating to the International Searching Authority (ISA), the Authority specified for supplementary search (SISA) and the International Preliminary Examining Authority (IPEA) have been modified with effect from 1 January 2015. Note that the modifications do not relate to any change in the substance of the PCT provisions currently in force.

Modifications have been made to the demand form (PCT/IPEA/401), as well as certain other forms, in order to clarify the format in which a sequence listing was furnished and the time when it was furnished, to clarify the term “in electronic form” in order to specify in which electronic form a sequence listing was submitted, and, in the case of the demand form, there have been some minor editorial changes which are unrelated to sequence listings. Applicants should ensure that they use the modified version of the demand form for demands filed on or after 1 January 2015. The demand form produced using the corresponding ePCT Action will be revised accordingly as of that date.

All the forms that have been modified with effect from 1 January 2015 are listed at:

and the changes are explained in the following Circular Letters which were sent to PCT Offices for consultation: C. PCT 1417 and C. PCT 1423 (see:


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