The Patentsview team has shutdown the original version of its API so the R package for it no longer works. We’re working through a PR for the new version of the API though it’s quite different from the original. Most importantly, an API key is now required. The API’s support page can be used to request an API key.
A beta version of the updated R package is on r-universe though it may change as we work through the PR. Once we’re done we will submit it to CRAN and also submit a Tech Note (beta, pending possible PR changes).
From the API team’s newsletter:
As a valued member of the patentsview community we wanted to let you know that the PatentsView legacy API will be officially discontinued on May 1st 2025 and any requests made to api.patentsview.org will redirect to PatentSearch API Documentation with a 410 Gone.