Fragile Opponent Outcome Trends in Japanese Patent Oppositions

摘要

This article reviews the self-evident trends from the JPo's latest patent opposition outcomes data and statistics, and provides some guidance to users of Japan's patent system in reaping the greatest benefits of the post-grant opposition and co-existing post-grant invalidation appeal systems while ameliorating their risks in implementing their patent enforcement and defence strategy in one of the world's most important economic markets, Japan.