January 2020 | No. 01/2020


Collaborative Search and Examination Pilot News

It is recalled that PCT Newsletter No. 07-08/2018 contained details of a Collaborative Search and Examination (CS&E) pilot, whereby the IP5 Offices1, upon the applicant’s specific request to participate, all contribute towards the international search report and the written opinion of the International Searching Authority (ISA) for a particular international application.  Each participating Office planned to process around 50 international applications as main ISA during the first year (July 2018 to June 2019) and a similar quantity in the second year (July 2019 to June 2020). 

News about participating Offices

Korean Intellectual Property Office (KIPO) and United States Patent and Trademark Office (USPTO)

Further to the announcement in PCT Newsletter No. 07‑08/2019 that KIPO and the USPTO had started accepting new international applications into the CS&E pilot from 1 July 2019, please note that those Offices have now reached their limit for international applications to be accepted by them as main ISA for the second year of operation.  They are therefore no longer accepting requests to participate in the pilot.

Information about the USPTO’s participation was published on the USPTO website at:


Note that interested applicants are still able to request to participate in the pilot through another International Searching Authority (ISA) that is still accepting to carry out main international searches within the framework of the pilot, provided that the ISA concerned is competent to carry out the main search for the application concerned.

Further general information on the CS&E pilot is available at:


  1. The China National Intellectual Property Administration, the European Patent Office, the Japan Patent Office, the Korean Intellectual Property Office and the United States Patent and Trademark Office.