I have tried running some short python scripts that send specific queries to PatentsView and have worked without errors for some time, but today they started returning no results even though the response code was 200. If I run one of the examples provided by PatentsView that just retrieves a single paten it works OK. Similarly if I try to reach for patents by a single inventor it appears to work, but my scripts which make use of conditions relating to dates, CPC codes, and other variables do not.
Is this related to the introduction of the Elastic Search version or is the system experiencing some other problem?
Thanks for you assistance with this.