The International Patent Application through PCT, designating countries of interest can directly be filed at the Indian Patent Office with India as the receiving office. Four copies of the International Application is required to be filed with the Patent Office.
The Patent Office prepares the certified copy of the priority documents and the same is transmitted to the International Bureau (IB) of the World Intellectual Property Organization (WIPO).
A search copy is also sent to the International Searching Authority (ISA). The ISAs conduct and issue search report on the patentability of the invention. The applicant may also consider examination of his application by the International Preliminary Examination Authority.
Depending upon the favorability of International search report and International Preliminary Examination report on Patentability the patent application may enter the national phase of the designated countries.