You are here: Home > Research > Are patent fees effective at weeding out low-quality patents?
de Rassenfosse, G. & Jaffe, A., forthcoming. "Are patent fees effective at weeding out low-quality patents?". Journal of Economics & Management Strategy vv(i), pp-pp.
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 10 per cent of patents in the lowest quality decile were filtered out, with the effect concentrated in the patents of firms whose overall patent portfolio was medium to large (more than 20 patents). The study has strong policy implications in the current context of concerns about declines in patent quality.
Keywords: intellectual property policy, patent fees, patent quality, patent reform, screening
JEL classification: K2; O31; O34; O38
Download the published version
Download the working paper version
Download the reference to a citation manager (.ris file format)