What's the difference between IPER and IPRP?

IPER and IPRP are concepts produced by PCT (patent cooperation treaty, managed by WIPO), and their full names are as follows: iprp: international preliminary report on patentability; IPER: international preliminary examination report. Another concept related to this is WO-ISA (? Written opinions of international search institutions)

On June 5438+1 October1day, 2004, a new mechanism for preliminary examination of PCT international patents, EISPE (Enhanced International Retrieval and Preliminary Examination System), came into effect, which changed according to the revision of the Patent Cooperation Treaty.

Under this mechanism, an international patent application follows different examination processes (paths) according to different situations at the time of application and during the application process, and the intermediate processes produce WO-ISA (according to Chapter I of the Patent Cooperation Treaty) and IPER (according to Chapter II of the Patent Cooperation Treaty) respectively, and finally WO-ISA and IPER are transformed into IPRP.

In short, IPRP and IPER are named differently to distinguish the achievements (reports) in different stages of international application for patent PCT.

For the new review mechanism, please refer to the website of the World Intellectual Property Organization: http://www.wipo.int/export/sites/www/pct/en/texts/PPT/2004changes.PPT.

For details of the Patent Cooperation Treaty (Chinese version), please refer to http://www.wipo.int/wipolex/en/treaties/text.jsp?. . file _ id = 323636