# PCT International Patent Application The Patent Cooperation Treaty (PCT) provides a unified procedure for filing patent applications in multiple countries simultaneously. ## Benefits of PCT - Single filing: One application covers up to 157 countries - Extended timeline: You have 30-31 months from the priority date to enter national phases - Cost deferral: Delay the major costs of national phase entry ## Key Deadlines | Phase | Deadline | |-------|----------| | International Filing | 12 months from priority date | | National Phase Entry | 30-31 months from priority date | > The PCT route is the most cost-effective way to seek patent protection in multiple countries.