What is the PCT supplementary international search

Nationalize PCT Patent Application in Vietnam

The PCT procedure includes:

· Filing

· International Search

· International Publication

· Supplementary International Search

· International Preliminary Examination

· National Phase

What is the PCT supplementary international search?

Supplementary international search permits the applicant to request, in addition to the international search (the “main international search”), one or more supplementary international searches each to be carried out by an ISA other than the ISA which carried out the main international search. The additional search has the potential of reducing the risk of new patent documents and other technical literature being discovered in the national phase since, by requesting supplementary search the applicant can enlarge the linguistic and/or technical scope of the documentation searched.

What is the supplementary international search report?

The supplementary international search report is generally similar in content and appearance to the main international search report; it contains a listing of references to patent documents and other technical literature which may affect the patentability of the invention claimed in the international application. However, it does not repeat documents which have already been cited in the international search report, unless this is necessary because of new relevance when read in conjunction with other documents discovered during the supplementary international search. On occasion, the supplementary international search report may contain more detailed explanations than those in the main international search report. This is due to the fact that, unlike the main international search, no written opinion is established with the supplementary international search report, and these additional details are helpful for a full understanding of the references listed.