MPEP 1800 covers which subject?

MPEP 1800 specifically addresses the subject of Patent Cooperation Treaty (PCT) applications. This section provides guidance on international patent law procedures that facilitate the filing of a single patent application to seek protection in multiple countries. It covers topics such as the PCT application process, the responsibilities of applicants, timing for filing, and specific requirements that need to be met for compliance with PCT standards.

This section is crucial for understanding how to navigate the international patent system and the mechanisms in place for filing and processing PCT applications. It emphasizes the international considerations that come into play when innovators seek patent protection beyond their home country, making it an essential reference for anyone involved in international patent filing.