PCT is the abbreviation of the Patent Cooperation Treaty, which is a treaty on international patent application. According to PCT regulations, patent applicants can obtain the right to enter more than 30 months from the priority date if they submit an international patent application to the World Intellectual Property Organization (WIPO) or the competent acceptance Office (the competent national office of PCT Member States) through PCT within 12 months from the priority date.

Once the PCT application is submitted, the maximum scope of the subsequent national stage application is defined by the PCT public text: the scope expansion caused by translation shall be subject to the PCT application, and the scope reduction caused by translation shall be subject to the reduced scope.

● Bray tells you the advantages of applying for PCT patent:

1. To submit an application in one language (the Chinese applicant uses Chinese) to an acceptance Bureau (the State Intellectual Property Office), that is, to have the effect of applying in a regular country in the designated country as of the international application date;

2. A bureau (acceptance Bureau) completes the formal examination;

3. International publication by one bureau (International Bureau);

4. Retrieval by a bureau (International searching unit);

5. An international preliminary review is conducted by a bureau (international preliminary review unit);

6. The review and authorization shall be completed by the National Bureau of the designated country.

When the same patent is applied to many countries, PCT system provides a very simple and effective solution.

Compared with Paris Convention, PCT approach has the advantage that the applicant can select the target country to enter within 30 months from the priority date, translate according to the requirements of the target country, reduce the initial investment of the cost, and at the same time, through 30 months of market observation period, the target country can be better determined, so that the applicant's time, energy and cost can be saved and improved Accuracy of entry.