Apart from the PCT International Search, an applicant can request the ISA to conduct a PCT Supplementary International Search. This can reduce the scope of new patents to be discovered in the national phase itself. Also, it helps in determining the technical scope of an invention to broader realm. However, this option isn’t mandatory.
Related FAQ: What is a supplementary international search report?
Generally, an applicant will go for this option only when their application has gone through an examination. According to the outcome of the examination, the applicant might feel the need to make some changes. Hence, upon making those changes, the applicant might want to make sure that the information in the application isn’t potentially violating any existing patents. This is where the PCT supplementary international search comes into play. Consequently, it will allow the applicant to know if the changes he/she made to the application are worth it or not.
Also, make sure that you check out this free e-book: A Quick Guide to Patents.
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