Signing of Patent Cooperation Treaty

Date: June 19, 1970 • Location: Rome, Italy

The international Patent Cooperation Treaty was signed, providing a unified procedure for filing patent applications to protect inventions in each of its contracting states.

The Patent Cooperation Treaty (PCT) is an international patent law treaty, concluded in 1970. It provides a unified procedure for filing patent applications to protect inventions in each of its contracting states. A patent application filed under the PCT is called an international application, or PCT application.