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Why "Bad" Patents Survive In The Market And How Should We Change?--The Private And Social Costs Of Patents, Jay P. Kesan

ExpressO

In this paper, we formally demonstrate that incorrectly issued patents can survive in the market without judicial review, even when the invention is neither novel nor non-obvious. We support this contention by presenting a game theoretic model that studies the interaction between the patentee and an alleged infringer/challenger. Using this model, we demonstrate the impact of the transaction costs in the patent system at the administrative stage in the Patent Office and at the enforcement stage in the courts, and highlight the inability in our current system to mount effective challenges to improperly granted patents in the current system. We …