Are Patent Fees Effective at Weeding Out Low‐Quality Patents?

  title={Are Patent Fees Effective at Weeding Out Low‐Quality Patents?},
  author={Ga{\'e}tan de Rassenfosse and Adam B. Jaffe},
  journal={Microeconomics: Decision-Making under Risk \& Uncertainty eJournal},
The paper investigates whether patent fees are an effective mechanism to deter the filing of low-quality patent applications. The study analyzes the effect on patent quality of the Patent Law Amendment Act of 1982, which resulted in a substantial increase in patenting fees at the U.S. Patent and Trademark Office. Results from a series of difference-in-differences regressions suggest that the increase in fees led to a weeding out of low-quality patents. About 14 per cent of patents in the lowest… 

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