I am trying to extract a citation network using patentsview.
Fortunatly there is an example that shows how to make it https://docs.ropensci.org/patentsview/articles/articles/citation-networks.html
But unfurtunatly this example generates an error message for me.
First it writes
"The _eq operator is a safer alternative to using field:value pairs or value arrays in your query"
"Error in UseMethod("as.request") :
no applicable method for 'as.request' applied to an object of class "character"
Calls: search_pv ... one_request -> <Anonymous> -> request_build -> as.request
Could you help?