The patent prosecution highway (PPH) is a filing system for patent applications that enables applicants to request a patent office of a signatory country to use the patentability report of the patent office of another signatory country at the time of the patentability examination. The main advantage of the PPH is that when the patentability report of the first filing office is reused, there is no duplication of effort on the part of the second filing office. This article explores the use of PPH agreements in Peru.