Dear Patstat Support, Thank you very much for your prompt reply, you have been of very much help. In the past 2 days I have been working on a query that (I thought) fixed the problem. However, your query returns more than twice the rows in respect to mine. I uploaded my query below, just in case you...

Hi all, I am carrying out a master thesis on pre and post-acquisition performances of the acquired inventors. Basically, I have to identify the inventors that belong to a sample of 450+ firms in a given time window and then retrieve their patenting activity of their whole career. I managed to identi...