How to Apply for an International Patent


Applying for an international patent can be a complex and time-consuming process. However, by following the steps outlined below, you can increase your chances of successfully obtaining an international patent.

1. Determine the countries in which you want to apply for a patent:

   Before applying for an international patent, you should determine the countries where you want to protect your invention. You can choose to apply for a patent in individual countries or through a regional patent office such as the European Patent Office (EPO) or the African Regional Intellectual Property Organization (ARIPO).

2. Conduct a patent search:

   Conducting a patent search will help you determine whether your invention is novel and non-obvious. You can conduct a search through various databases such as the World Intellectual Property Organization (WIPO) PatentScope, the United States Patent and Trademark Office (USPTO) database, or through the European Patent Office (EPO) database.

3. File a provisional patent application:

   Filing a provisional patent application with your country's patent office will establish a priority date for your invention. This priority date will be used to determine whether your invention is novel and non-obvious compared to other inventions filed after your priority date.

4. File an international patent application:

   File an international patent application (also known as a PCT application) with the WIPO. This application will allow you to apply for a patent in multiple countries simultaneously. The PCT application must be filed within 12 months of the provisional application filing date.

5. International Search Report:

   The International Search Authority (ISA) will conduct an International Search Report (ISR) and a written opinion on the patentability of your invention. You will receive this report within approximately 6 months of filing the PCT application.

6. International Preliminary Examination:

   If you wish to continue with the international patent application process, you must file a request for international preliminary examination (IPE) within 22 months of the priority date. This step is optional, but it can be useful in identifying potential issues with your invention before filing individual patent applications in specific countries.

7. National Phase:

   After receiving the ISR and IPE, you can enter the national phase by filing individual patent applications in the countries where you want to protect your invention. These applications must be filed within 30-31 months of the priority date.

In conclusion, applying for an international patent involves multiple steps and can be a complex process. Seeking the assistance of a patent attorney or agent may be helpful to ensure that your application meets all the requirements and increases your chances of obtaining a patent.