What does the patent pct mean?

PCT is the English abbreviation of PatentCooperationTreaty, which is an international treaty on patents. The advantage is that patent applicants can submit international patent applications through PCT and apply for patents in multiple countries, which can save part of the energy spent on applying to multiple countries at the same time.

The PCT international patent application is first submitted by the patent applicant to its competent acceptance bureau, made public internationally by the International Bureau of the World Intellectual Property Organization, and searched internationally by international search units. If requested by the applicant, the international patent application shall be subject to international preliminary examination by the international preliminary examination unit. The purpose of international retrieval is to provide the existing technical data related to the international patent application; The purpose of international preliminary examination is to provide preliminary examination opinions on the novelty, creativity and industrial practicability of the international patent application. After the international stage of international retrieval, international publicity and international preliminary examination (if required), the patent applicant goes through the formalities of entering the national stage.

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