PCT Practice: International Filing, the ISR & National Phase Entry
Using the PCT System Strategically
Comprehensive PCT guide - Chapter I and Chapter II procedures, choosing receiving offices, international search and preliminary examination, optimizing the national phase entry decision, and using PCT delays strategically.
Companion last updated: June 1, 2026
Key Topics
- PCT Chapter I and Chapter II
- Selecting receiving offices
- International Search Report and Written Opinion
- Demand for International Preliminary Examination
- National phase entry decisions and timing
Updated Figures & Data
The following figures or data from this chapter have been updated since the print edition.
PCT official fees - transmittal, international search, designation (2026)
PCT fees updated as of January 2026 - see current fee schedule.
For current official fee schedules, see the Fees page →
Prompts for This Chapter
Tested AI prompts relevant to the topics covered in Chapter 11. Copy and adapt for your work.
PCT National Phase Entry Decision Analyzer
Analyzes which countries to enter national phase in, based on commercial and strategic factors.