Deferring Fees and Extending Pendency of Patent Applications in Japan

Aki Ryuka
Patent Attorney, Japan

Green-highlighted options cost the same or less per deferred month than the fees for filing and prosecuting a divisional application (yellow). We suggest pursuing the green options first and then filing a divisional application for keeping a patent application pending longer.


1. Fees and deferred months are typical numbers and may vary.
2. The fees do not include those for studying the office actions or inventions, because those fees are added anyway.
3. The fees for appeal (G) and divisional (I) are dependent on the number of claims. We assumed the number of claims as 13 and 15 for an appeal and divisional application, respectively.