Once a patent is issued in the U.S., Japan, or the EU (the European Patent Office), under World Intellectual Property Organization rules, it is good in all three of those jurisdictions.

Question

Quizplus · Accepted Answer

While a patent issued in one country can be used as a basis for seeking patent protection in other countries through foreign filing, there is no global patent system that automatically grants a patent in all countries. Each country has its own patent laws and procedures, and a patent must be obtained separately in each country where protection is sought. Therefore, while a patent issued in the U.S., Japan, or the EU may provide a strong foundation for obtaining a patent in other countries, it does not automatically extend to provide patent protection in those locations.

Once a Patent Is Issued in the U